A belief or conclusion held with confidence but not substantiated by positive knowledge or proof.
예문
1. public opinion (여론) 2. in one's opinion (…의 의견으로는) 3. form an opinion about (…에 대한 의견을 갖다) 4. be in high opinion (평판이 높다) 5. I have no great opinion of his work. (나는 그의 일을 그다지 높게 평가하지 않는다)
