n. 1 a belief or assessment based on grounds short of proof. 2 a view held as probable. 3 (often foll. by on) what one thinks about a particular topic or question (my opinion on capital punishment). 4 a a formal statement of professional advice (will get a second opinion). b Law a formal statement of reasons for a judgement given. 5 an estimation (had a low opinion of it). be of the opinion that believe or maintain that. in one's opinion according to one's view or belief. a matter of opinion a disputable point. opinion poll = GALLUP POLL. public opinion views generally prevalent, esp. on moral questions.
[ ME f. OF f. L opinio -onis (as OPINE) ]