もの 物になる Show inflections LinksSentence search for 物になるSentence search for ものになるSentence search for 物に成るKanji details for 物Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending1. to prove successful; to take hold; to amount to somethingUsually written using kana aloneOther forms物に成る 【ものになる】 Discussions Log in to talk about this word.