Words That Start with AC

2-letter words that start with AC

• ac4n. Account; money of account.

3-letter words that start with AC

• ace5n. A playing card showing a single pip, typically the highest or lowest...
• ach8interj. An expression of annoyance.
• ack9n. The letter A as used in signalling and other types of communications.
• act5n. Something done, a deed.

4-letter words that start with AC

• acai6n. Any of several South American palms, of the genus Euterpe, having a...
• acar6n. A vegetable pickle of Maritime Southeast Asia, a local version of the...
• acca8n. An accumulator bet.
• acer6n. A plant of the genus Acer; a maple.
• aces6interj. Ace; excellent.
• acha9n. Fonio, esp. Digitaria exilis (white fonio) (a cereal cultivated in...
• ache9v. To suffer pain; to be the source of, or be in, pain, especially...
• achi9n. The eldest sister.
• achy12adj. With or suffering from aches; sore.
• acid7adj. Sour, sharp, or biting to the taste; tart; having the taste of vinegar.
• acle6n. A kind of ironwood tree (Xylia xylocarpa).
• acme8n. A high point: the highest point of any range, the most developed stage...
• acne6n. A skin condition, usually of the face, that is common in adolescents....
• acop8adv. Atop.
• acra6n. The vascular areas of the body most removed from the heart.
• acre6n. An English unit of land area (symbol: a. or ac.) originally denoting a...
• acro6adj. Combining acrobatic elements with something else.
• acyl9n. Any of class of organic radicals, RCO-, formed by the removal of a...

5-letter words that start with AC

• acana7n. A tree from the West Indies that was valued for its wood and was one of...
• acara7n. Any of a number of Central American and South American freshwater fish...
• accra9n. A spicy fritter, originally from Ghana but now typically from Haiti.
• achar10n. A spicy and salty pickle in Indian cuisine.
• acher10n. Something that aches.
• achoo10interj. The sound of a sneeze.
• achor10n. Dandruff (or similar condition).
• ackee11n. A tropical evergreen tree, Blighia sapida, related to the lychee and...
• acker11n. A visible current in a lake or river; a ripple on the surface of water.
• acorn7n. The fruit of the oak, being an oval nut growing in a woody cup or...
• acral7adj. Of or pertaining to peripheral body parts, such as toes and fingers.
• acrid8adj. Sharp and harsh, or bitter and not to the taste.
• acron7n. Synonym of prostomium.
• acryl10n. The univalent radical derived from acrylic acid :- CH₂=CH-CO-.
• acter7n. A play or film with a particular number of acts.
• actin7n. A globular structural protein that polymerizes in a helical fashion to...
• actio7n. The use of voice and gestures in oratory; the style of delivery of a...
• actor7n. Someone or something that takes part in some action; a doer, an agent.
• actus7n. A former Roman unit of length, equal to 120 Roman feet (about 35.5 m).
• acute7adj. Brief, quick, short.

6-letter words that start with AC

• acacia10n. A shrub or tree of the tribe Acacieae.
• accede11v. To agree or assent [with to ‘a proposal, a request’]; to give way.
• accent10n. A higher-pitched or stronger (louder or longer) articulation of a...
• accept12v. To receive, especially with a consent, with favour, or with approval.
• access10n. A way or means of approaching or entering; an entrance; a passage.
• accord11n. Agreement of opinion, will, or action.
• accost10v. To approach and speak to boldly or aggressively, as with a demand or...
• accrue10v. To increase, to rise.
• accuse10v. To find fault with, blame, censure.
• acedia9n. Spiritual or mental sloth and the feeling it provokes; apathy or...
• acerra8n. In Ancient Rome, a small box for holding incense.
• acetal8n. Any diether of a geminal diol, R₂C(OR')₂ (where R' is not H).
• acetic10adj. Of, pertaining to, or producing vinegar.
• acetyl11n. The univalent radical CH₃CO- derived from acetic acid.
• achene11n. A small, dry, indehiscent fruit, containing a single seed, as in the...
• achill11adj. Chilled; chilly.
• aching12adj. That aches; continuously painful; that causes pain.
• acidic11adj. Of or relating to acid; having the character of an acid.
• acidly12adv. Sourly; tartly.
• acinar8adj. Of, pertaining to, or located in an acinus.
• ackers12n. Synonym of money.
• acquis17n. The accumulated legislation, legal acts, and court decisions which...
• acquit17v. To declare or find innocent or not guilty.
• across8prep. To, toward, or from the far side of (something that lies between two...
• acting9adj. Temporarily assuming the duties or authority of another person when...
• action8n. The effort of performing or doing something.
• active11adj. Having the power or quality of acting; causing change; communicating...
• actual8adj. Relating to a person's acts or deeds; active, practical.
• acuity11n. Sharpness or acuteness, as of a needle, wit, etc.
• acumen10n. Quickness of perception or discernment; penetration of mind; the...

7-letter words that start with AC

• academe12n. The garden in Athens where the academics met.
• academy15n. An institution for the study of higher learning; a college or a...
• acausal9adj. Not causal.
• acclaim13v. To express great approval (for).
• account11n. A registry of pecuniary transactions; a written or printed statement of...
• accrete11v. To grow together, combine; to fuse.
• accrual11n. The act or process of accruing; accumulation.
• accrued12adj. Having increased through accrual; having risen over time or due to...
• accused12n. The person charged with an offense; the defendant in a criminal case.
• accuser11n. One who accuses; one who brings a charge of crime or fault.
• acequia18n. An irrigation ditch, chiefly with reference to Mexico or the...
• acerbic13adj. Tasting sour or bitter.
• acerola9n. Any tree of species Malpighia glabra, of the West Indies and northern...
• acetate9n. Any ester or salt of acetic acid.
• acetoin9n. The compound 3-hydroxybutanone CH₃-CO-CH(OH)-CH₃ that is one of the...
• acetone9n. A colourless, volatile, flammable liquid ketone, (CH₃)₂CO, used as a...
• acetoxy19n. The univalent radical, CH₃-COO-, derived from acetic acid by loss of a...
• acharya15n. An individual who practices or is knowledgeable on any of the prevalent...
• achieve15v. To carry out or conclude (something, as a task) successfully; to...
• achiote12n. A tropical American evergreen shrub, Bixa orellana; the lipstick tree.
• achiral12adj. Superimposable on its mirror image; amphichiral.
• acidify16v. To make something (more) acidic or sour; to convert into an acid.
• acidity13n. The quality or state of being acid.
• acolyte12n. One who has received the highest of the four minor orders in the...
• aconite9n. The herb wolfsbane, or monkshood; any plant of the genus Aconitum, all...
• acquire18v. To get.
• acreage10n. Size, as measured in acres.
• acrobat11n. An athlete who performs acts requiring skill, agility and coordination...
• acronym14n. Generally such abbreviations, including those pronounced as individual...
• acrylic14adj. Derived from acrylic acid or acrylonitrile.
• actinia9n. A sea anemone, specifically a member of the genus Actinia.
• actinic11adj. Related to radiation; used most often in reference to light, especially...
• actinin9n. Any of several microfilament proteins that have a function in the...
• activin12n. A peptide that participates in the regulation of the menstrual cycle...
• actress9n. A female who performs on the stage or in films.
• actuals9n. Documented historical results; things that have happened rather than...
• actuary12n. Registrar, clerk.
• actuate9v. To activate, or to put into motion; to animate.
• acutely12adv. In an acute manner.
• acyclic16adj. Not cyclic; having an open chain structure.

8-letter words that start with AC

• academia13n. The scientific and cultural community engaged in higher education and...
• academic15adj. Belonging to the school or philosophy of Plato.
• acanthus13n. A member of the genus Acanthus of herbaceous prickly plants with...
• acarbose12n. An antidiabetic drug C₂₅H₄₃NO₁₈ (trademark Precose) that is taken...
• accented13adj. Having an accent.
• accepted15adj. Generally approved, believed, or recognized.
• acceptor14n. One who accepts.
• accessor12n. Someone or something that accesses.
• accident13n. An unexpected event with negative consequences occurring without the...
• accolade13n. An expression of approval; praise.
• accosted13adj. Supported on both sides by other charges.
• accredit13v. To ascribe; attribute; credit with.
• accruing13n. An amount that is accrued.
• accuracy17n. The state of being accurate; being free from error; exactness...
• accurate12adj. Telling the truth or giving a true result; exact; not defective or...
• accursed13adj. Hateful; detestable, loathsome.
• accusing13adj. Accusatory.
• accustom14v. To make familiar by use; to cause to accept; to habituate, familiarize...
• achieved17adj. Having been reached, attained or accomplished.
• achiever16n. One who achieves something.
• achillea13n. Any of various plants of the genus Achillea.
• achingly17adv. So as to cause aching, especially heartache.
• acicular12adj. Needle-shaped; slender like a needle or bristle.
• acidosis11n. An abnormally increased acidity of the blood.
• aciduria11n. The presence of an acid in the urine.
• aconitum12n. The poisonous herb aconite; also, an extract from it.
• acoustic12adj. Used for soundproofing or modifying sound.
• acquaint19v. To furnish or give experimental knowledge of; to make (one) know; to...
• acquired20adj. Developed after birth; not congenital.
• acquirer19n. One who acquires.
• acrimony15n. A sharp and bitter hatred.
• acrolein10n. A pungent, acrid, poisonous liquid aldehyde, CH₂=CH-CH=O, made by the...
• acromial12adj. Of or pertaining to the acromion.
• acromion12n. The outermost point of the shoulder blade.
• acrostic12n. A poem or other text in which certain letters, often the first in each...
• acrylate13n. Any salt or ester of acrylic acid.
• actinide11n. Any of the 15 radioactive elements of the periodic table from actinium...
• actinium12n. A radioactive, metallic chemical element (symbol: Ac) with an atomic...
• actioned11adj. Having a specified kind of action.
• actioner10n. An action movie.
• activate13v. To encourage development or induce increased activity; to stimulate.
• actively16adv. In an active manner.
• activism15n. The practice of using action to achieve a result, such as political...
• activist13n. One who is politically active in the role of a citizen; especially, one...
• activity16n. The state or quality of being active; activeness.
• actually13adv. In act or in fact; really; in truth; positively.
• actuator10n. Something that actuates something else.
• acylated14adj. Having an acyl functional group; modified by addition of an acyl group.

The 48 most common of 56 are shown.

9-letter words that start with AC

• academics16n. Academia.
• acaricide14n. Any substance which kills acarids (mites and ticks).
• acarology15n. The study of ticks and mites.
• accentual13adj. Of or pertaining to accent; characterized or formed by accent.
• accepting16adj. Characterized by acceptance.
• acception15n. Acceptation; received meaning.
• accession13n. A coming to; the act of acceding and becoming joined.
• accessory16adj. Having a secondary, supplementary or subordinate function by...
• accipiter15n. Any hawk of the genus Accipiter.
• acclaimed16adj. Greatly praised or lauded, revered, highly respected.
• acclimate15v. To habituate to a climate not native; to acclimatize.
• accompany20v. To go with or attend as a companion or associate; to keep company with...
• accordant14adj. In agreement; agreeing.
• according15adj. Agreeing; in agreement or harmony; harmonious.
• accordion14n. A box-shaped musical instrument played by compressing or expanding its...
• accosting14n. The act of physically confronting a person.
• accretion13n. Increase by natural growth, especially the gradual increase of organic...
• accretive16adj. Relating to accretion; increasing, or adding to, by growth.
• acellular11adj. Not composed of cells; not cellular.
• acetamide14n. The amide of acetic acid, CH₃CONH₂.
• acetonide12n. Any cyclic acetal derived from acetone and a diol, especially from a...
• acetylene14n. Any organic compound having one or more carbon–carbon triple bonds; an...
• acetylide15n. Any organic compound derived from acetylene or a terminal acetylene by...
• achalasia14n. Such obstruction in the esophagus: esophageal achalasia.
• achieving18n. An achievement; the process of achieving something.
• aciclovir16n. A cyclic synthetic nucleoside C₈H₁₁N₅O₃ used as an antiviral drug...
• acidulous12adj. Slightly sour; subacid; sourish.
• aconitase11n. Aconitate hydratase, an enzyme that catalyses the stereospecific...
• aconitine11n. An intensely poisonous alkaloid, extracted from aconite.
• acoustica13n. Acoustic music.
• acoustics13n. The science of sounds, teaching their nature, phenomena and laws.
• acquiesce22v. To rest satisfied, or apparently satisfied, or to rest without...
• acquittal20n. A legal decision that someone is not guilty with which they have been...
• acquitted21adj. Having been acquitted; having gone through a trial that resulted in...
• acrobatic15adj. Of or pertaining to an acrobat.
• acropolis13n. A promontory (usually fortified with a citadel) forming the hub of many...
• actioning12n. An instance of taking action.
• activator14n. One who, or that which, activates.
• actuality14n. The state of existing; existence.
• actualize20v. To make real; to realize.
• actuarial11adj. Of or pertaining to actuaries.
• actuation11n. The act of putting into motion.
• acuminate13adj. Tapering to a point; pointed.
• acuteness11n. The quality of being acute or pointed.
• acylation14n. The process of adding an acyl group to a compound.

10-letter words that start with AC

• academical17adj. Pertaining to a university or other form of higher education.
• acanthosis15n. A benign abnormal thickening of the stratum spinosum, or prickle cell...
• accelerant14n. In the context of fire protection, a substance that accelerates the...
• accelerate14v. To cause to move faster; to quicken the motion of; to add to the speed...
• accentuate14v. To pronounce with an accent or vocal stress.
• acceptable18adj. Capable, worthy, or sure of being accepted or received with pleasure...
• acceptably21adv. In an acceptable manner; in a manner to please or give satisfaction.
• acceptance18n. The act of accepting; the receiving of something offered, with...
• accessible16adj. Easy of access or approach.
• accessibly19adv. In an accessible manner.
• accessions14n. A collection of laboratory tests performed on a single sample.
• accidental15adj. Pertaining to accident and not essence; thus, inessential; incidental...
• acclaiming17adj. That acclaims; applauding, welcoming enthusiastically.
• acclimated17adj. Accustomed, adapted, or hardened to some environment or circumstance.
• accomodate17v. Accommated.
• accomplice20n. An associate in the commission of a crime; a participator in an...
• accomplish21v. To finish successfully.
• accordance17n. Agreement; harmony; conformity; compliance.
• accountant14n. One who renders account; one accountable.
• accounting15n. The development and use of a system for recording and analyzing the...
• accredited16adj. Given official approval after meeting certain standards, as an...
• accreditor15n. A person or organization that provides accreditation.
• accumulate16v. To heap up in a mass; to pile up; to collect or bring together (either...
• accurately17adv. In an accurate manner; exactly; precisely; without error or defect.
• accusation14n. The act of accusing.
• accusative17adj. Producing accusations; in a manner that reflects a finding of fault or...
• accusatory17adj. Pertaining to, or containing, an accusation.
• accusingly18adv. In an accusing manner.
• accustomed17adj. Familiar with something through repeated experience; adapted to...
• acesulfame17n. Any of a class of synthetic noncaloric sweeteners, based on a...
• acetabular14adj. Cup-shaped; saucer-shaped.
• acetabulum16n. The bony cup of the hip bone which receives the head of the femur.
• acetylated16adj. That has been reacted with acetic acid (or one of its derivatives), or...
• achievable20adj. Capable of being achieved, which either means possible or probable.
• achromatic19adj. Free from color; transmitting light without color-related distortion.
• acoustical14adj. Of or pertaining to hearing or acoustics.
• acquainted22adj. Personally known; familiar.
• acquirable23adj. Capable of being acquired.
• acrobatics16n. The art of performing acrobatic gymnastic feats.
• acromegaly18n. A chronic disease marked by enlargement of the bones of the...
• acrophobia19n. Phobia or strong fear of being high above ground level.
• acrylamide18n. The amide of acrylic acid, CH₂=CH.CONH₂; used in the manufacture of...
• actinolite12n. A mineral with monoclinic crystals of the chemical formula...
• actionable14adj. Able to be acted on; able to be used as the basis for taking action.
• activation15n. Making active and effective; bringing into a state of activity.
• activeness15n. The state or quality of being active.
• activewear18n. Casual clothing that is comfortable to wear when exercising or...
• actualized22adj. Having become actual; having been realized or made real.

The 48 most common of 51 are shown.

11-letter words that start with AC

• academicals18n. The articles of dress prescribed and worn at some colleges and...
• academician18n. A member (especially a senior one) of the faculty at a college or...
• academicism20n. The doctrines of Plato's academy; specifically the skeptical doctrines...
• acamprosate17n. A drug, 3-acetylaminopropane-1-sulfonic acid (or a calcium salt), used...
• accelerando16n. A tempo mark directing that a passage is to be played at an increasing...
• accelerated16adj. Moving or progressing faster than is usual.
• accelerator15n. One who, or that which, accelerates.
• acceptation17n. The meaning (sense) in which a word or expression is understood, or...
• accessorize24v. To furnish with accessories.
• acclamation17n. A shout of approbation, favor, or assent; eager expression of approval...
• acclimation17n. The process of becoming, or the state of being, acclimated, or...
• acclimatise17v. Non-Oxford British English and New Zealand standard spelling of...
• acclimatize26v. To get used to a new climate, or to a new situation.
• accommodate20v. To render fit, suitable, or correspondent; to adapt.
• accompanied20adj. Having accompaniment; being part of a group of at least two.
• accompanist19n. The performer in music who takes the accompanying part.
• accordingly20adv. Agreeably; correspondingly; suitably.
• accountable17adj. Obliged, when called upon, to answer (for one’s deeds); answerable.
• accountancy20n. The function of compiling and providing financial information primarily...
• acculturate15v. To change the culture of (a person) by the influence of another...
• accumulator17n. One who, or that which, accumulates.
• acerbically20adv. Sourly; bitterly.
• acetoacetyl18n. The univalent radical CH₃CO-CH₂CO- derived from acetoacetic acid.
• acetobacter17n. Any member of the genus Acetobacter of acetic acid bacteria...
• acetylation16n. The reaction of a substance with acetic acid or one of its derivatives...
• achievement21n. The act of achieving or performing; a successful performance...
• acidophilic21adj. Thriving under acidic conditions; relating to or being an acidophile.
• acidophilus19n. Lactobacillus acidophilus, one of the bacteria commonly used in...
• acknowledge22v. To admit the knowledge of; to recognize as a fact or truth; to declare...
• acoustician15n. One versed in acoustics, especially a physicist who specializes in...
• acquiescent24adj. Willing to acquiesce, accept or agree to something without objection...
• acquirement24n. The act or fact of acquiring something; acquisition.
• acquisition22n. The act or process of acquiring.
• acquisitive25adj. Able or disposed to make acquisitions; acquiring, greedy.
• acquittance24n. A writing which is evidence of a discharge; a receipt in full, which...
• acrimonious15adj. Angry, acid, and sharp in delivering argumentative replies: bitter...
• acrocentric17adj. (of a chromosome) Having the centromere very near to one end, and thus...
• acromegalic18adj. Pertaining to or characteristic of acromegaly.
• actinomyces20n. Any bacterium (species) of the genus Actinomyces.
• actinomycin20n. Any of a class of toxic polypeptide antibiotics found in soil bacteria...
• activatable18adj. Capable of being activated.
• actuarially16adv. By actuarial principles.
• acupressure15n. An alternative medicine technique, derived from acupuncture, in which...
• acupuncture17n. The insertion of needles into the (living) tissue of the body affecting...

12-letter words that start with AC

• academically22adv. In an academic style or way; from an academic perspective.
• acanthamoeba21n. Any amoeba of the genus Acanthamoeba, found chiefly in soil.
• accelerating17n. An act of acceleration.
• acceleration16n. The act of accelerating, or the state of being accelerated; increase of...
• accelerative19adj. Relating to acceleration; adding to velocity; quickening.
• accentuation16n. A more distinct or prominent form.
• accessorized26adj. Wearing or equipped with accessories.
• accidentally20adv. In an accidental manner; by chance, unexpectedly.
• acclimatized28adj. Having undergone acclimatization.
• accompanying24adj. Present together.
• accomplished24adj. Completed; effected; established.
• accordionist17n. Someone who plays the accordion.
• accouchement23n. Delivery in childbed; parturition.
• accoutrement18n. A soldier's equipment, other than weapons and uniform.
• accretionary19adj. Of, pertaining to, or in the form of an accretion.
• acculturated17adj. Accustomed to; familiar with.
• accumulation18n. The act of amassing or gathering, as into a pile.
• accumulative21adj. Characterized by accumulation; serving to collect or amass.
• acepromazine27n. A phenothiazine derivative antipsychotic drug.
• acetaldehyde22n. A colourless organic compound, CH₃CHO, occurring widely in nature and...
• acetoacetate16n. Any salt or ester of acetoacetic acid.
• acetonitrile14n. The simplest organic cyanide or nitrile, CH₃CN, formally derived from...
• acetophenone19n. The aromatic ketone phenyl methyl ketone, used in the manufacture of...
• acknowledged24adj. Generally accepted, recognized or admitted.
• acoustically19adv. In an acoustic manner, or using an acoustic musical instrument.
• acquaintance25n. A state of being acquainted with a person; originally indicating...
• acquiescence27n. A silent or passive assent or submission, or a submission with apparent...
• actinomycete21n. Any of various filamentous or rod-shaped bacteria, of the order...

13-letter words that start with AC

• accelerometer19n. An instrument for measuring acceleration.
• acceptability24n. The quality of being acceptable; acceptableness.
• accessibility22n. The quality of being accessible, or of admitting approach...
• acclimatation19n. Acclimatization.
• accommodating23adj. Affording, or disposed to afford, accommodation; obliging; helpful.
• accommodation22n. Lodging in a dwelling or similar living quarters afforded to travellers...
• accommodative25adj. Supplying with or obliging; accommodating.
• accompaniment23n. A part, usually performed by instruments, that gives support or adds to...
• accreditation18n. The giving of credentials.
• acculturation17n. A process by which the culture of a society changes on contact with a...
• acculturative20adj. Tending to produce acculturation.
• acetaminophen22n. A white crystalline compound used in medicine as an anodyne to relieve...
• acetazolamide27n. A drug that inhibits the enzyme carbonic anhydrase, used in the...
• acetylacetone20n. The diketone CH₃COCH₂COCH₃ used as a solvent and as a coordination...
• acetylcholine23n. A neurotransmitter in humans and other animals. It is an ester of...
• achievability26n. The state or condition of being achievable.
• achromatopsia22n. Total color blindness; the total inability to distinguish colors due to...
• acidification21n. The act or process of making something sour (acidifying), or changing...
• acinetobacter19n. Any bacterium of the genus Acinetobacter.
• acknowledging25adj. That acknowledges, in various sense; (especially) that notices or...
• acrimoniously20adv. In an acrimonious manner; with acrimony.
• acrobatically22adv. In an acrobatic manner.
• acrylonitrile18n. A toxic colourless liquid organic compound, CH₂=CH.CN, synthesized from...
• actinomorphic24adj. Having its petals arranged in a radially symmetric fashion.
• actinomycosis22n. An infectious bacterial disease of cattle and swine, sometimes...
• actualization24n. Making actual or really existent.
• acupuncturist19n. A healthcare professional who is qualified or professionally engaged in...

14-letter words that start with AC

• accommodations23n. Accommodation, lodging.
• accomplishable27adj. Capable of being accomplished; practicable.
• accomplishment27n. The act of accomplishing; completion; fulfilment.
• accountability23n. The state of being accountable; liability to be called on to render an...
• acetylcysteine24n. An acetylated form of the amino acid cysteine (trademark Mucomyst)...
• achondroplasia22n. A genetic disorder, the most common form of short limb dwarfism.
• acknowledgment27n. The act of acknowledging.
• actinobacillus20n. Any bacterium of the genus Actinobacillus.

15-letter words that start with AC

• accelerationism21n. The idea that either the prevailing system of capitalism, or certain...
• acclimatisation21n. Non-Oxford British English and New Zealand standard spelling of...
• acclimatization30n. The act of acclimatizing; the process of inuring to a new climate, or...
• acetylacetonate22n. Any salt of the enol form of acetylacetone.
• acetylsalicylic27adj. Describing any derivative of salicylic acid in which the phenolic...
• acquisitiveness29n. The quality of being acquisitive; propensity to acquire property...
• acyltransferase23n. Any of several transferase enzymes that catalyze the transfer of acyl...

Questions about these words

How many words that start with AC are there?

Word.ws lists 379 words that start with AC, plus 1,988 rare ones.

What are common words that start with AC?

actually, act, according, across, action, account, access and active.

Which of the words that start with AC has the highest letter score?

acclimatization scores 30 points with the standard letter tile values.

Related word lists

• Words That Start with A
• Words Ending in AC
• 5-Letter Words Starting with AC
• Q Words Without U