やくた 役に立つ Common word JLPT N4 Wanikani level 8 Play audio Show inflections LinksSentence search for 役に立つSentence search for やくにたつSentence search for 役にたつKanji details for 役 and 立Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'tsu' ending1. to be helpful; to be usefulOther forms役にたつ 【やくにたつ】 Discussions Log in to talk about this word.