as

Adverb (1)

as (not comparable)

1. To such an extent or degree; to the same extent or degree.
   • She regards her kids as (being) holy as saints.
   • You’re not as tall as I am, but you are definitely as happy as can be.
2. Considered to be, in relation to something else; in the relation (specified).
3. (dated, formal) For example; for instance. (Compare such as.)
   • Likewise many other indulgences were by virtue hereof granted; as, to have a portatile altar, to receive the Sacrament privately; […]1820, John Strype, The Life of the Learned Sir Thomas Smith, page 48
   • First; original; indigenous; primitive; native; as, the aboriginal tribes of America.1913, “Aboriginal”, in Webster's Unabridged Dictionary

Conjunction

as

1. In the (same) way or manner that; to the (same) degree that.
   • Do as I say!
   • I'm under a lot of pressure, as you know.
   1. Used after so or as to introduce a comparison.
      • She's twice as strong as I was two years ago.
      • It's not so complicated as I expected.
   2. Used to introduce a result: with the result that it is; as to.
      • [...] that the Board of Regents had fallen into disrepute; that intelligent men inquired what the board was; he said that it was a quiet body, and kept out of the newspapers — and so quiet as to lead many to suppose tho board had ceased to exist.1868, Proceedings and Debates of the [New York] Constitutional Convention Held in 1867 and 1868 in the City of Albany, page 2853
      • It was a talent he had developed; he could actually be so quiet as to be practically invisible. In class, he was rarely called upon to answer any questions. In the crowded hallways, he could slip in and out without offending any of the local bullies ...2006, Eric Manasse, The Twenty-First Man, iUniverse, →ISBN, page 7
   3. Expressing concession: though.
      • (As) much as I respect your viewpoint, I can’t agree.
      • (As) bravely as they fought, they soon lost the battle.
2. At the same instant or moment that: when.
   • As I came in, she fled.
3. At the same time that, during the same time when: while.
   • He sleeps as the rain falls.

   Synonyms:

   while

4. Varying through time in the same proportion that.
   • As my fear grew, so did my legs become heavy.
   • As she grew older, she grew wiser.
5. Being that, considering that, because, since.
   • As it’s too late, I quit.
   • (As) tired as he was, I decided not to disturb him.

   Synonyms:

   as long as, because, being, being as, being that, due to the fact that, for, for that, forasmuch as, forthy

6. (dated) Introducing a comparison with a hypothetical state (+ subjunctive, or with the verb elided): as though, as if.
   • And sodenly there cam a sounde from heven as it had bene the commynge off a myghty wynde […]1526, [William Tyndale, transl.], The Newe Testamẽt […] (Tyndale Bible), [Worms, Germany: Peter Schöffer], →OCLC, Acts ij
   • Oft haue I ſeene the haughty Cardinall,
     More like a Souldier then a man o' th' Church,
     As ſtout and proud as he were Lord of all […]1591 (date written), William Shakespeare, “The Second Part of Henry the Sixt, […]”, in Mr. William Shakespeares Comedies, Histories, & Tragedies. […] (First Folio), London: […] Isaac Iaggard, and...
7. used before a preposition to clarify that the prepositional phrase restricts the meaning of the sentence; specifically.
   • The case is dismissed as between Jones and Smith.
   • The case is dismissed as against Smith.
8. Functioning as a relative conjunction, and sometimes like a relative pronoun: that, which, who. (See usage notes.)
   • You strike me as being a very fidgety type of person.
   • He had the same problem as she did getting the lock open.
9. (England, obsolete, possibly, rare, Midland US and Southern US) Than.
   • The king was not more forward to bestow favours on them as they free to deal affronts to others their superiors.1655, Thomas Fuller, The Church-history of Britain; […], London: […] Iohn Williams […], →OCLC, (please specify |book=I to XI)
   • Darkness itself is no more opposite to light as their actions were diametricall to their words.1660, James Howell, Parly of Beasts, page 48

Preposition

as

1. Introducing a basis of comparison, with an object in the objective case.
   • You are not as tall as my sister.
   • They are big as houses.
2. In the role of.
   • What is your opinion as a parent?
   • As your big sis, I worry about your life too.
3. In the form of.
   • I bought you a new toy as a special treat.

Noun (1)

IPA/ˈæs/

as (plural ases or asses)

1. (unit of weight) A libra, a Roman pound.
2. (Ancient-Rome) Any of several coins of Rome, coined in bronze or later copper; or the equivalent value.

   Synonyms:

   assarion, assarius

Adverb (2)

IPA/ˈæz/

as

1. (Australia, New Zealand, especially, slang) Used to intensify an adjective; very much; extremely.
   • sweet as
   • It also appears in other positions in the sentence: his big as car could hardly fit.
   • It's pretty scratched, and dented as.2021 May 17, “Language Matters: Sweet as is Kiwi as”, in Stuff

Proper noun capitalized: AS

AS

1. (abbreviation, initialism) Initialism of Anglo-Saxon.
2. (abbreviation) Abbreviation of Assam: a state of India.

Noun (2) capitalized: AS

AS

1. (UK, abbreviation, historical, initialism) Initialism of Advanced Supplementary.
2. (UK, abbreviation, initialism) Initialism of Advanced Subsidiary.
   • AS-level
3. (abbreviation, initialism) Initialism of aortic stenosis.
4. (abbreviation, initialism) Initialism of Asperger's syndrome.
5. (abbreviation, initialism) Initialism of ankylosing spondylitis.
6. (Internet, abbreviation, initialism) Initialism of autonomous system.
7. (Navy, US, abbreviation, initialism) Initialism of auxiliary submarine: a naval tender, a submarine tender that tends to submarines.
8. (abbreviation, initialism, Java programming language) Initialism of application server.
9. (abbreviation, initialism) Initialism of Alström syndrome.

Phrase capitalized: AS

AS

1. (abbreviation, initialism) Initialism of alayhi as-salaam.

   Synonyms:

   PBUH, SAW, peace be upon him

Noun (3) capitalized: As

As

1. (plural) plural of A
   • She went from getting Cs and Ds to earning straight As.