This is the 8431st most frequent Japanese word.
意気投合
"意気投合" means "to hit it off or find mutual understanding and agreement in spirit or sentiment."
Here, '意気投合' is used to describe the instant and natural agreement and connection between two individuals upon meeting.
彼と私はすぐに意気投合しました。
He and I quickly hit it off.
In this sentence, '意気投合' emphasizes the development of rapport built around mutual interests.
私たちは共通の趣味を通じて意気投合しました。
We bonded over our shared interests.
The word '意気投合' highlights the sense of immediate and deep connection as if the individuals had known each other for a long time.