expression, godan verb (-u)
be in sync; work well together; get along well
Idiomatic expression describing people whose timing, rhythm, or rapport is naturally aligned, whether in performance, teamwork, or personal chemistry.
あの二人は息が合っていて、漫才がとても面白い。
Those two are perfectly in sync, and their comedy duo is really funny.
彼とは初めて会ったのに、息が合ってすぐに仲良くなった。
Even though I met him for the first time, we hit it off right away and became good friends.