用于 Traditional form: 用於 Pinyin (reading): yòngyú Definitions: to use in; to use on; to use for Characters: 用 - to use, to employ, to apply; use 于 - at, in, on; to, from; alas! Traditional characters: 用 - to use, to employ, to apply; use 於 - at, in, on; to, from; alas!