二合一 Traditional form: 二合一 Pinyin (reading): èrhéyī Definitions: 2-in-1 two-in-one Characters: 二 - two; twice 合 - to combine, to join, to unite; to gather 一 - one; a, an; alone Traditional characters: 二 - two; twice 合 - to combine, to join, to unite; to gather 一 - one; a, an; alone