as

1. as (adv) — sense 1

Definition: To such an extent or degree; to the same extent or degree.

Example: She regards her kids as (being) holy as saints.

2. as (adv) — sense 2

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

3. as (adv) — sense 3

Definition: For example; for instance. (Compare such as.)

Example: Likewise many other indulgences were by virtue hereof granted; as, to have a portatile altar, to receive the Sacrament privately; […]

4. as (conj) — sense 4

Definition: In the (same) way or manner that; to the (same) degree that.

Example: Do as I say!

5. as (conj) — sense 5

Definition: In the (same) way or manner that; to the (same) degree that.: Used after so or as to introduce a comparison.

Example: She's twice as strong as I was two years ago.

6. as (conj) — sense 6

Definition: In the (same) way or manner that; to the (same) degree that.: Used to introduce a result: with the result that it is; as to.

Example: [...] 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.

7. as (prep) — sense 7

Definition: Introducing a basis of comparison, with an object in the objective case.

Example: You are not as tall as my sister.

8. as (prep) — sense 8

Definition: In the role of.

Example: What is your opinion as a parent?

9. as (prep) — sense 9

Definition: In the form of.

Example: I bought you a new toy as a special treat.