Meaning of “as” - Learner’s Dictionary


preposition, conjunction us uk strong /æz/ weak /əz/
as .... as

A2 used to compare two things, people, amounts, etc:

He's not as tall as his brother.
She earns three times as much as I do.

More examples


B1 used to describe two things happening at the same time or something happening at a particular time:

He was shot in the back as he tried to escape.
I think your opinions change as you get older.

A1 used to describe the purpose, job, or appearance of something or someone:

She works as a waitress.
It could be used as evidence against him.

B1 in the same way:

This year, as in previous years, tickets sold very quickly.

used to describe the way in which people see or think of something or someone:

She was regarded as a great beauty in her day.

A2 because:

You can go first as you're the oldest.
As I'd never been to Poland before, I bought a guidebook.
as if/as though

B2 used to describe how a situation seems to be:

It looks as if it might rain.
as for

B2 used to talk about how another person or thing is affected by something:

I was pleased. As for Emily, well, who cares what she thinks.
as from/as of formal

starting from a particular time, date, etc:

The new conditions are effective as of Monday.
as to formal


There's no decision as to when the work might start.

(Definition of “as” from the Cambridge Learner’s Dictionary © Cambridge University Press)