godan verb (-u), intransitive verb
be mutually understood; be comprehended by each other
Intransitive: thoughts, feelings, or intentions are naturally understood between people without explicit exchange. Often used when describing a state of mutual understanding.
言葉がなくても、お互いの気持ちが通じ合った。
Even without words, our feelings were mutually understood.
Couples who have been together for many years sometimes understand each other without words.
godan verb (-u), transitive verb
exchange (thoughts, feelings); communicate with each other
Transitive: people actively share or convey thoughts, feelings, or intentions to each other. Emphasizes the act of communication.
会議では、参加者同士が意見を通じ合うことが大切だ。
In meetings, it is important for participants to exchange opinions with each other.
彼らは手紙で気持ちを通じ合った。
They communicated their feelings to each other through letters.