common noun

(grammar) word that can refer to any member of a class of similar things (eg book or knife) 普通名词（可以指同类事物其中之一的词, 如 book、 knife）.

commission, commissionaire, commissioned officer, commissioner, Commissioner for Oaths, commit, commit suicide, commitment, committal, committed, committee, commode, commodious, commodity, commodore, common, common decency, common ground, common land, common law, common sense, common time, common-room, commoner, commonly, commonplace, commons, commonsense, commonsensical, commonwealth, commotion, communal, communally, commune, communicable, communicant, communicate, communicate with, communication, communication cord,