こ 肥やし LinksSentence search for 肥やしSentence search for こやしSentence search for 肥しKanji details for 肥Edit in JMdict Noun1. manure; night soil; dung; fertiliser; fertilizerNoun2. something that will help one develop in the futureOther forms肥し 【こやし】 Discussions Log in to talk about this word.