Godan verb with 'u' ending, Transitive verb
to say to each other; to exchange (jokes, comments, etc.)
互いに自分の預金高は言い合わなかった。They did not tell each other about the size of their savings. Godan verb with 'u' ending, Intransitive verb
to quarrel; to dispute
Also written 言合う【いいあう】