有ゆう効こう性せいMeaningsNoun1. validity; effectivenessKanji used有be in possession効be effective性nature (of a person)Composed of有ゆう効こうvalid; effective; yuko (judo)Na-adjective性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun