Translation guide
The English word 'collision' covers physical crashes between objects, vehicles, or people, as well as abstract clashes of ideas, schedules, or interests. Japanese uses different words depending on what is colliding and how severe it is.
Describing a physical crash between cars, trains, ships, or other objects, often in accidents.
The most general word for a collision between vehicles or objects. Can also be used metaphorically.
高速道路で車の衝突事故があった。
There was a car collision on the highway.
列車の正面衝突が起きた。
A head-on collision of trains occurred.
Specifically a rear-end collision.
信号待ちで追突された。
I was rear-ended while waiting at a traffic light.
A violent crash or smash-up, often used in dramatic contexts.
トラックが壁に激突した。
The truck smashed into the wall.
When ideas, opinions, or personalities conflict strongly.
Also used for clashes of opinions or personalities.
彼らの意見はよく衝突する。
Their opinions often collide.
上司と衝突して会社を辞めた。
I clashed with my boss and quit the company.
Confrontation or opposition, often between groups or ideas.
When two events or appointments happen at the same time.
Literally 'to overlap', used for schedule conflicts.
会議の時間が重なってしまった。
The meeting times collided (overlapped).
From English 'batting', meaning schedules clash. Casual.
予定がバッティングしちゃった。
My plans collided (overlapped).
Accidentally bumping into a person while walking.
General verb for bumping or colliding with something or someone.
人とぶつかってしまった。
I bumped into someone.
More formal, used for people colliding but less common in casual speech.
歩行者同士が衝突した。
The pedestrians collided with each other.
Scientific term for particles or objects hitting each other.
衝突 is more formal and often used for serious accidents or abstract clashes. ぶつかる is casual and physical, like bumping into someone or something.
車が衝突した。
The cars collided. (formal/accident)
自転車で壁にぶつかった。
I bumped into the wall with my bicycle. (casual)
For lightly bumping into someone in a crowd, ぶつかる is natural. 衝突 would sound overly dramatic.
二つの政党が対立している。
The two political parties are in conflict.