いっしょう 一生モノ LinksSentence search for 一生モノSentence search for いっしょうものSentence search for 一生ものSentence search for 一生物Kanji details for 一 and 生Edit in JMdict Noun, Noun which may take the genitive case particle 'no'1. something that will last a lifetime (esp. high-quality products)Other forms一生もの 【いっしょうもの】、一生物 【いっしょうもの】 Discussions Log in to talk about this word.