kook

n (US derog sl 贬, 俚) peculiar, eccentric or crazy person 怪人; 狂人.

know sb. by name, know-all, know-how, knowing, knowingly, knowledgable, knowledge, knowledgeable, knowledgeably, known, known as, knuckle, knuckleduster, knucklehead, KO, koala, kobo, kohl, kohlrabi, kola, kookaburra, kooky, kopeck (also kopek), koppie (also kopje), Koran, Koranic, Korea, Korean, kosher, koumiss, kowtow, kph, kraal, kremlin, krill, kris, krona, krone, krugerrand, krypton,