Home›Browse›有用性🌐日本語EnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaРусскийहिन्दी中文日本語EntityQ21263262· pop 10有用性Sign in to saveAlso known as useful, usefulnessstate or condition of being usefulWikidata factsInstance ofqualitySubclass ofqualityShow 1 more factpartially coincident withconveniencevia Wikidata · CC0Available in 1 language日本語via Wikidata sitelinks · CC0