有効ゆうこうyuukou有ゆう効こう有ゆう効こうShow answer(Space)Suspend(@)有ゆう効こう有ゆう効こうyuukouCommonRelative commonness of this word, based on various sources (incl. newspapers)CommonJLPT N1Kanji difficulty according to the Japanese Language Proficiency Test. N5 is easiest and N1 is hardestJLPT N1Noun (common)Noun (common) (futsuumeishi)Noun (common)valid; effectiveな-adj.Adjectival nouns or quasi-adjectives (keiyodoshi)な-adj.EXAMPLEそれは細菌(さいきん)感染(かんせん)に有効(ゆうこう)だ。It is effective against bacterial infections.yuko (judo)有ゆう効こう有ゆう効こうyuukouvalid; effectiveWhat does 有効 mean in English?valid; effective(adj-na, n)yuko (judo)(n)Search the picture dictionary for 有効
