as

Symbol for attosecond, an SI unit of time equal to 10 seconds.

arcsecond

ISO 639-1 language code for Assamese.

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.
• It's not as well made, but it's twice as expensive.

Considered to be, in relation to something else; in the relation (specified).

For example; for instance.

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.
• As you wish, my lord!

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.
• It’s as easy to do it right as it is to do it wrong.

Used to introduce a result: with the result that it is; as to.

Expressing concession: though.

• (As) much as I respect your viewpoint, I can’t agree.
• (As) bravely as they fought, they soon lost the battle.
• Try as she might, she could not escape.

At the time that; during the time when: At the same instant or moment that: when.

• As I came in, she fled.
• He sleeps as the rain falls.
• As my fear grew, so did my legs become heavy.

At the same instant or moment that: when.

• As I came in, she fled.

At the same time that, during the same time when: while.

• He sleeps as the rain falls.

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.

Being that, considering that, because, since.

• As it’s too late, I quit.
• (As) tired as he was, I decided not to disturb him.

Introducing a comparison with a hypothetical state (+ subjunctive, or with the verb elided): as though, as if.

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.

Functioning as a relative conjunction, and sometimes like a relative pronoun: that, which, who.

• You strike me as being a very fidgety type of person.
• He had the same problem as she did getting the lock open.
• I read this extract as being extremely pessimistic.

Than.

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.

In the role of.

• What is your opinion as a parent?
• As your big sis, I worry about your life too.
• He was never seen as the boss, but rather as a friend.

In the form of.

• I bought you a new toy as a special treat.

A libra, a Roman pound.

Any of several coins of Rome, coined in bronze or later copper; or the equivalent value.

Alternative form of a's.

Used to intensify an adjective; very much; extremely.

• sweet as