Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “as”

as

  strong /æz/   weak /əz/ preposition, conjunction
A1 used to describe something’s purpose or someone’s job: She works as a waitress. They use their spare bedroom as an office.
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.
A2 because: You can go first as you’re the oldest.
B1 while: I saw James as I was leaving.
B1 in the same way: This year, as in previous years, tickets sold very quickly.
as if/as though used to describe how a situation seems to be: It looks as if it might rain.
as for used to talk about how another person or thing is affected by something: I’m pleased. As for Kyle, I don’t care what he thinks.
(Definition of as prepositionconjunction from the Cambridge Essential Dictionary © Cambridge University Press)

Definitions of “as” in other dictionaries

Word of the Day

limber up

to do gentle exercises to stretch the muscles in order to prepare the body for more active physical exercise

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More