horn/hɔːn/
n.1. (牛、羊等动物的)角2. (蜗牛等的)触角3. 角质,角质物;角制物The knife has a horn handle.这把小刀有角质柄。
4. 号角; 喇叭the French horn法国号
5. 警报器6. (汽车的)喇叭The driver blew / sounded his horn when an old lady with her dog stepped in front of his car.一个老太太带着她的狗走到车前,司机按响了喇叭。