ぶつかり合あう

ぶ

つ

か

り

あ

う

Meanings

1

godan verb (-u), transitive verb

collide with each other; clash

Describes two or more things or people physically bumping into each other, or opinions/interests conflicting.

Opinions often clash in meetings.

ぶつかる
ぶつかる is the base verb meaning 'to bump into' or 'to collide with' (intransitive, often used with に). ぶつかり合う emphasizes mutual or reciprocal action between two or more parties.
衝しょう突とつする
衝突する is more formal and often used for serious collisions (vehicles, opinions). ぶつかり合う is more casual and can describe everyday bumping or clashing.

Compound of ぶつかる (to bump into) + 合う (mutual action suffix). The kanji 打つ is sometimes used for ぶつ, but the kana spelling is standard.