kookaburra

n (also laughing jackass) Australian giant kingfisher 笑翠鸟（产於澳洲）.

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