As Definition

ăz; əz when unstressed
-asses
adverb
To the same extent or degree; equally.
The child sang as sweetly as a nightingale.
American Heritage
To the same amount or degree; equally.
I'm just as happy at home.
Webster's New World
For instance.
Large mammals, as the bear or lion.
American Heritage
For instance; thus.
A card game, as bridge.
Webster's New World
When taken into consideration in a specified relation or form.
This definition as distinguished from the second one.
American Heritage
Synonyms:
conjuntion
To the same degree or quantity that. Often used as a correlative after so or as:
You are as sweet as sugar. The situation is not so bad as you suggest.
American Heritage
In the same amount in which or to the same degree to which.
It flew straight as an arrow.
Webster's New World
In the same manner or way that.
Think as I think.
American Heritage
In the same manner that; according to the way that.
Do as you are told.
Webster's New World
At the same time that; while.
She laughed as she spoke.
Webster's New World
pronoun
That; which; who. Used after same or such:
I received the same grade as you did.
American Heritage
A fact that.
We are tired, as anyone can see.
Webster's New World
Who, whom, which, or that.
Those as want to can come with me.
American Heritage
That: preceded by such or the same.
The same color as yours is.
Webster's New World
Who; which; that.
Them as likes pork chops will be there.
Webster's New World
preposition
In the role, capacity, or function of.
Acting as a mediator.
American Heritage
In the role, function, capacity, or sense of.
He poses as a friend.
Webster's New World
In a manner similar to; the same as.
On this issue they thought as one.
American Heritage
Like.
The risk is as nothing compared to the gain.
Webster's New World
noun
An ancient Roman coin of copper or copper alloy.
American Heritage
An ancient Roman unit of weight, equal to about twelve ounces; libra, or Roman pound.
Webster's New World
An ancient Roman unit of weight equal to about one troy pound.
American Heritage
An ancient Roman coin of copper alloy.
Webster's New World
Synonyms:
abbreviation
Airspeed.
American Heritage
American Samoa.
Webster's New World
Anglo-Saxon.
Webster's New World
Associate in (or of) Science.
Webster's New World
Antisubmarine.
American Heritage
symbol
Arsenic.
Webster's New World

(metrology) Symbol for the attosiemens, an SI unit of electrical conductance equal to 10−18 siemens.

Wiktionary
affix
Webster's New World
idiom
as is
  • Just the way it is, with no changes or modifications:

    bought the samovar as is from an antique dealer.

American Heritage
as it were
  • In a manner of speaking; as if such were so.
American Heritage
as ... as
  • a correlative construction used to indicate the equality or sameness of two things

    as large as, as heavy as, as many as, etc.

Webster's New World
as for
  • with reference to; concerning
Webster's New World
as if
  • as it (or one) would if
  • that

    it seems as if you're never happy

Webster's New World

Other Word Forms of As

Noun

Singular:
as
Plural:
asses

Idioms, Phrasal Verbs Related to As

Origin of As

  • Middle English from Old English ealswā also

    From American Heritage Dictionary of the English Language, 5th Edition

  • Latin

    From American Heritage Dictionary of the English Language, 5th Edition