know-all

n (infml derog 口, 贬) person who behaves as if he knows everything 自以为无所不知的人: one of those young know-alls fresh from university 大学刚毕业的一个小小的万事通.

knock sth together, knock up, knock up against, knock-down, knock-kneed, knock-on, knock-out, knock-up, knockabout, knocker, knoll, knot, knot-hole, knotty, know, know about, know better than, know no bounds, know of, know sb. by name, know-how, knowing, knowingly, knowledgable, knowledge, knowledgeable, knowledgeably, known, known as, knuckle, knuckleduster, knucklehead, KO, koala, kobo, kohl, kohlrabi, kola, kook, kookaburra,