as
- 01 A1 Beginner
conj.used to compare two things that are the same in some way.
conj.used to indicate equality in degree or manner between two entities or actions.
Simple“The second movie was just as good as the first one.”
In context“The results of the second trial were as conclusive as the initial findings had suggested they would be.”
UsageUsed in the 'as + adjective + as' construction.
PitfallHe is as tall than his brother. He is as tall as his brother.In comparisons of equality, use 'as... as', not 'as... than'.
Synonyms - 02 B1 Intermediate
conj.used to give a reason for something.
conj.used to introduce a clause that provides a reason or explanation; synonymous with 'since' or 'because'.
Simple“As it was raining, we decided to stay home and watch a movie.”
In context“As the chairman was unable to attend the meeting, the vice-chair presided over the vote.”
UsageOften used at the beginning of a sentence in formal writing.
- 03 A2 Elementary
conj.used to show that two things are happening at the same time.
conj.used to indicate that one action or event is occurring simultaneously with another.
Simple“She waved to her friends as she walked onto the bus.”
In context“The audience began to cheer as the lead singer stepped into the spotlight.”
- 04 A1 Beginner
prep.used to describe the job or purpose of someone or something.
prep.used to indicate the capacity, role, or function of a person or object.
Simple“She works as a nurse in the local hospital.”
In context“He was hired as a consultant to oversee the restructuring of the marketing department.”
UsageFollowed by a noun phrase.
PitfallHe works like a teacher. He works as a teacher.Use 'as' to describe a real job or role; use 'like' for a comparison to something that is not actually true.
Synonymsfunctioning as - 05 C1 Advanced
adv.used after an adjective to mean 'very' or 'extremely'.
adv.used as a post-positive intensifier for adjectives.
Simple“The weather today is hot as.”
In context“After working a double shift, he was tired as and went straight to bed.”
Teacher's tipThis usage is specific to Australian and New Zealand English; learners should be aware of its regional nature.
Usage define as · describe as · emerge as