出入口 Traditional form: 出入口 Pinyin (reading): chūrùkǒu Definitions: gateway Characters: 出 - to go out, to send out; stand; produce 入 - to enter, to come in; to join 口 - mouth; entrance, gate, opening Traditional characters: 出 - to go out, to send out; stand; produce 入 - to enter, to come in; to join 口 - mouth; entrance, gate, opening