使し用よう性せい試し験けんMeaningsNoun1. usability test; fitness-for-use testKanji used使use (something physical)用used for性nature (of a person)試test験verificationComposed of使し用ようuse; application; employment; utilization; utilisationNoun性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun試し験けんexamination; exam; test; trial; experimentNoun