投币口 Traditional form: 投幣口 Pinyin (reading): tóubìkǒu Definitions: coin slot Characters: 投 - to pitch, to throw; to bid, to invest 币 - currency, coins, legal tender 口 - mouth; entrance, gate, opening Traditional characters: 投 - to pitch, to throw; to bid, to invest 幣 - currency, coins, legal tender 口 - mouth; entrance, gate, opening