Words That Start with OP

2-letter words that start with OP

• op4n. An amateur radio operator.

3-letter words that start with OP

• opa5n. Grandfather, grandpa.
• ope5interj. An exclamation of surprise; oops.
• opo5n. The calabash or bottle gourd.
• opp7n. An opponent; an enemy; the opposition.
• ops5n. Operations.
• opt5v. To choose; select.

4-letter words that start with OP

• opah9n. Any of various large, colourful, deep-bodied pelagic fish of the family...
• opal6n. A mineral consisting, like quartz, of silica, but inferior to quartz in...
• open6adj. Able to have something pass through or along it.
• oppa8n. An affectionate term of address for an older brother or somewhat older...
• oppo8n. A friend, associate or colleague.
• oppy11adj. Characteristic of an opp; inimical, hostile.
• opry9n. Opera.
• opus6n. A work of music or set of works with a specified rank in an ordering of...

5-letter words that start with OP

• opara7n. The oldest son, who has inherited the rights and responsibilities of...
• opera7n. A theatrical work, combining drama, music, song and sometimes dance...
• opine7v. To express an opinion; to state as an opinion; to suppose, consider...
• opium9n. A yellow-brown, addictive narcotic drug obtained from the dried juice...
• oplan7n. Operational plan.
• oppai9n. A woman's breasts, particularly of an anime or manga character.
• opsin7n. Any of a group of light-sensitive proteins in the retina.
• optic9adj. Of, or relating to the eye or to vision.

6-letter words that start with OP

• opaque17adj. Neither reflecting nor emitting light.
• opcode11n. A mnemonic used to refer to a microprocessor instruction in assembly...
• opened9adj. Having undergone opening.
• opener8n. A person who opens something.
• openly11adv. In an open manner; visibly.
• operon8n. A unit of genetic material that functions in a coordinated manner by...
• ophion11n. Any ichneumon wasp of the genus Ophion.
• ophrys14n. Any orchid of the genus Ophrys, often vernacularly called bee orchids.
• opiate8adj. Relating to, resembling, or containing opium.
• opilio8n. The snow crab Chionoecetes opilio.
• opioid9n. Any of the natural substances, such as an endorphin, released in the...
• oppose10v. To attempt to stop the progression of; to resist or antagonize by...
• optics10n. The physics of light and vision: basic optical science.
• optime10n. A student who graduates with second class ("senior optime") or third...
• option8n. One of a set of choices that can be made.

7-letter words that start with OP

• opacity14n. The state or quality of being opaque, not allowing light to pass...
• opaline9adj. Resembling opal in having a milky white iridescence.
• opalite9n. Opal; some variety of it; an artificial mineral resembling it.
• opening10adj. Pertaining to the start or beginning of a series of events.
• operand10n. A quantity to which an operator is applied (in 3-x, the operands of the...
• operant9adj. That operates to produce an effect.
• operate9v. To perform a work or labour; to exert power or strength, physical or...
• opining10n. The act of giving one's opinion.
• opinion9n. A belief, judgment or perspective that a person has formed, either...
• opossum11n. Any American marsupial of the family Didelphidae in the order...
• oppidum14n. A large, defended Iron Age settlement associated with the Celtic La...
• opposed12adj. Acting in opposition; opposing.
• opposer11n. One who opposes, one who shows opposition.
• opposit11v. To posit or assume as a contradictory; negative or deny.
• oppress11v. To keep down by unjust force.
• optical11adj. Of or relating to sight; visual.
• optimal11adj. The best, most favourable or desirable, especially under some...
• optimum13n. The best or most favorable condition, or the greatest amount or degree...
• opulent9adj. Luxuriant, and ostentatiously magnificent.
• opuntia9n. Opuntia, a genus of cactus that includes such cacti as the prickly pear...

8-letter words that start with OP

• opaquely22adv. In an opaque manner.
• openable12adj. Capable of being opened.
• opencast12adj. Of or pertaining to strip mining, in which material is removed from a...
• openness10n. Accommodating attitude or opinion, as in receptivity to new ideas...
• openside11n. The space on the side of the pitch with the larger distance between the...
• openwork17n. Any of several forms of metalwork or needlework having decorative...
• operable12adj. Able to be operated or used.
• operably15adv. Such that it allows an operation to take place.
• operated11adj. Operated by the means specified e.g. a battery-operated toy.
• operatic12adj. Of, related to, or typical of opera.
• operator10n. A person or organisation that operates a device, system, service, etc.
• operetta10n. A lighter version of opera with a frivolous story and spoken dialogue.
• ophidian14n. Any species of the suborder Serpentes; a snake or serpent.
• opponent12n. One who opposes another; one who works or takes a position against...
• opposing13adj. That opposes or oppose; on the opposite side.
• opposite12adj. Located directly across from something else, or from each other.
• optation10n. A wish; a desire.
• optative13adj. Expressing a wish or a choice.
• opticals12n. Spectacles.
• optician12n. A person who makes, dispenses or sells lenses, spectacles.
• optimism14n. A tendency to expect the best, or at least, a favourable outcome.
• optimist12n. A person who expects a favourable outcome.
• optimize21v. To act optimistically or as an optimist.
• optional10adj. Not compulsory; left to personal choice; elective.
• optioned11adj. Having the specified kind or number of options.
• optronic12adj. Optoelectronic.
• opulence12n. Wealth.

9-letter words that start with OP

• operating12adj. In operation; that operates.
• operation11n. The method by which a device performs its function.
• operative14adj. Effectual or important.
• operatory14adj. Of or relating to operations.
• opercular13adj. Relating to the operculum.
• operculum15n. A covering flap in animals and insects, such as a gill cover or the lid...
• ophiolite14n. An assemblage of mafic and ultramafic rock fragments of the ocean...
• opportune13adj. Suitable for some particular purpose.
• opposable15adj. Susceptible to being opposed or resisted.
• oppressed14adj. Subject to oppression.
• oppressor13n. Someone who oppresses another or others.
• optically16adv. Regarding or using optics.
• opticians13n. An optometry practice.
• optimally16adv. In an optimal manner.
• optimized23adj. That has undergone optimization.
• optimizer22n. A person in a large business whose task is to maximize profits and make...
• optometry16n. The art and science of vision and eye care.
• optronics13n. Optoelectronics.
• opulently14adv. In an opulent manner.
• opusculum15n. An opuscule; a short work.

10-letter words that start with OP

• opalescent14adj. Exhibiting a milky iridescence like that of an opal.
• opaqueness21n. Synonym of opacity.
• operations12n. Any practically minded combination of business administration...
• operculate14adj. Having an operculum.
• ophiolitic17adj. Of or pertaining to sections of the oceanic crust and the subjacent...
• ophthalmia20n. Synonym of ophthalmitis (“inflammation of the eye”).
• ophthalmic22adj. Of or pertaining to the eyes.
• oppositely17adv. In an opposite manner.
• opposition14n. The action of opposing or of being in conflict.
• oppressing15adj. Oppressive.
• oppression14n. The exercise of authority or power in a burdensome, cruel, or unjust...
• oppressive17adj. Burdensome or difficult to bear.
• opprobrium18n. Disgrace or bad reputation arising from exceedingly shameful behaviour...
• optimality17n. The property of being optimal.
• optimistic16adj. Expecting the best in all possible ways.
• optimizing24adj. Carrying out optimization.
• optionally15adv. In an optional manner; not mandatorily.
• optometric16adj. Of or pertaining to optometry.

11-letter words that start with OP

• opalescence17n. The state of being opalescent.
• operability18n. The extent to which a system or device is operable.
• operational13adj. Of or relating to operations, especially military operations.
• operatively19adv. In an operative manner.
• opinionated14adj. Having very strong opinions.
• opportunely18adv. In a manner suitable for some particular purpose.
• opportunism17n. The practice of taking advantage of any situations or people to achieve...
• opportunist15n. Someone who takes advantage of any opportunity to advance their own...
• opportunity18n. A chance for advancement, progress or profit.
• opprobrious17adj. Causing opprobrium; offensive and shameful.
• optionality16n. The value of additional optional investment opportunities available...
• optogenetic16adj. Generated by light.
• optometrist15n. A person trained and skilled in examining and testing the eyes for...

12-letter words that start with OP

• operatically19adv. In an operatic manner.
• oppositional16adj. Of, pertaining to, or exhibiting opposition.
• oppressively22adv. In an oppressive manner.
• optimization25n. The design and operation of a system or process to make it as good as...
• optogenetics17n. A science that combines optics and genetics, aiming at controlling...

13-letter words that start with OP

• opacification22n. The action of making something opaque or cloudy.
• operationally18adv. In an operational manner; in accordance with an operation.
• ophthalmology27n. The anatomy, functions, pathology, and treatment of the eye.
• opportunistic19adj. Taking advantage of situations that arise.
• oppositionist17n. A person who opposes; especially a member of an official opposition.

14-letter words that start with OP

• operationalize25v. To make operational.
• ophthalmologic27adj. Ophthalmological.
• ophthalmopathy32n. Eye disease.
• ophthalmoscope28n. An instrument for examining the interior of the eye (that is, for...
• ophthalmoscopy31n. Examination of the eye with an ophthalmoscope.
• oppressiveness21n. The characteristic of being oppressive.
• optimistically23adv. In an optimistic manner.
• optoelectronic20adj. Of or pertaining to optoelectronics.
• optomechanical25adj. Of or pertaining to optomechanics.

15-letter words that start with OP

• ophthalmologist26n. A medical doctor specializing in the eye: deficiencies of vision...
• ophthalmoplegia28n. A complete paralysis of the extraocular muscles which are responsible...
• optoelectronics21n. The branch of physics that deals with the interaction of light with...

Questions about these words

How many words that start with OP are there?

Word.ws lists 158 words that start with OP, plus 562 rare ones.

What are common words that start with OP?

open, opportunity, opening, opinion, operation, operations, opened and option.

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

ophthalmopathy scores 32 points with the standard letter tile values.

Related word lists

• Words That Start with O
• Words Ending in OP
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