behaviournounUK (US behavior) uk /bɪˈheɪ.vjər/ us /-vjɚ/
- He has always demanded the highest standards of behaviour from his children.
- The stupid behaviour of one pupil has brought discredit on the whole school.
- His casual behaviour was wholly inappropriate for such a formal occasion.
- After a while her behaviour really began to irritate me.
- I'd just met his parents for the first time so I was on my best behaviour.