behave
behave
verb
OPAL W OPAL S
/bɪˈheɪv/
1 intransitive + adv./prep. to do things in a particular way
SYNONYM act
The doctor behaved very unprofessionally.
They behaved very badly towards their guests.
He behaved like a true gentleman.
They behave differently when you're not around.
He had always behaved in a friendly manner towards us.
I expect you to behave in a certain way.
She behaved with great dignity.
He behaved as if/though nothing had happened.
In spoken English people often use like instead of as if or as though, especially in North American English: He behaved like nothing had happened. This is not considered correct in written British English.
Collocations
adverb
impeccably
perfectly
well
preposition
according to
as if
as though
2 intransitive, transitive to do things in a way that people think is correct or polite
Will you kids just behave!
She doesn't know how to behave in public.
The children always behave for their father.
behave yourself I want you to behave yourselves while I'm away.
OPPOSITE misbehave
3 -behaved (in adjectives) behaving in the way mentioned
well-/badly behaved children
4 ​intransitive + adv./prep. (specialist) to naturally react, move, etc. in a particular way
a study of how metals behave under pressure
Idioms
behave/act as if you own the place | think you own the place
Word Origin
late Middle English: from be- ‘thoroughly’ + have in the sense ‘have or bear (oneself) in a particular way’ (corresponding to modern German sich behaben).