common-room

n room for use of the teachers or students of a school, college, etc when they are not in class （教师或学生的）公共休息室.

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 noun, common sense, common time, commoner, commonly, commonplace, commons, commonsense, commonsensical, commonwealth, commotion, communal, communally, commune, communicable, communicant, communicate, communicate with, communication, communication cord, communicative, communicator, communion,