户口本 Traditional form: 戶口本 Pinyin (reading): hùkǒuběn Definitions: household register household registration booklet residence certificate Characters: 户 - door; family 口 - mouth; entrance, gate, opening 本 - root, origin, source; basis Traditional characters: 戶 - door; family 口 - mouth; entrance, gate, opening 本 - root, origin, source; basis