as

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

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

You’re not as tall as I am, but you are definitely as happy as can be.

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

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; […]

First; original; indigenous; primitive; native; as, the aboriginal tribes of America.

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.

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

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

It's not so complicated as I expected.

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

[...] 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.

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 ...

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

(As) much as I respect your viewpoint, I can’t agree.

(As) bravely as they fought, they soon lost the battle.

At the time that; during the time when:

As I came in, she fled.

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.

In the form of.

I bought you a new toy as a special treat.