たあ 立ち合う Show inflections LinksSentence search for 立ち合うSentence search for たちあうSentence search for 立合うKanji details for 立 and 合Edit in JMdict Godan verb with 'u' ending, Intransitive verb1. to be matched against (in a sports contest)Other forms立合う 【たちあう】 Discussions Log in to talk about this word.