よんばい 四倍 LinksSentence search for 四倍Sentence search for よんばいSentence search for ４倍Kanji details for 四 and 倍Edit in JMdict Noun, Noun which may take the genitive case particle 'no'1. four times (as much); quadruple; fourfoldOther forms４倍 【よんばい】 Discussions Log in to talk about this word.