有ゆう用よう性せいMeaningsNoun1. usefulnessKanji used有be in possession用used for性nature (of a person)Composed of有ゆう用ようuseful; helpfulNa-adjective性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun