Yuka追突 and 衝突 are both collision words — but they describe very different types of crashes. If you ever need to describe a traffic accident in Japanese, knowing the difference matters!
ReiRight! 追突 (tsuitotsu) means a rear-end collision — hitting the car in front of you. 衝突 (shoutotsu) means a head-on or side collision between two things crashing into each other.
| 追突 (tsuitotsu) | 衝突 (shoutotsu) | |
|---|---|---|
| Meaning | Rear-end collision | Collision / crash (head-on or direct) |
| Direction | From behind, same direction | Opposing or crossing directions |
| Used figuratively? | Rarely | Yes — conflict, clash of ideas |
| Example | 前の車に追突した。 | 二台の車が衝突した。 |
追突 — Rear-End Collision
追突 (tsuitotsu) specifically means hitting the car (or object) in front of you — a rear-end crash. 追 means “to chase” and 突 means “to thrust/crash,” so the image is “chasing and crashing into.”
- 前の車に追突してしまった。— I rear-ended the car in front of me.
- 追突事故が起きた。— A rear-end accident occurred.
- 追突されてむち打ちになった。— I was rear-ended and got whiplash.
衝突 — Direct Crash or Clash
衝突 (shoutotsu) means two things colliding with each other — head-on, side impact, or any direct crash. It is also widely used figuratively for conflicts, clashes of opinion, or confrontations.
- 二台の車が正面衝突した。— Two cars had a head-on collision.
- 意見が衝突した。— Our opinions clashed.
- 利害が衝突する。— Interests conflict.
- 彼らは何度も衝突している。— They keep clashing with each other.
Figurative Use
衝突 is very commonly used figuratively in Japanese for clashes of opinion, interests, or personality. 追突 is almost never used figuratively — it stays in the physical/traffic domain.
| Expression | Meaning |
|---|---|
| 意見の衝突 | Clash of opinions |
| 文化の衝突 | Culture clash |
| 利害の衝突 | Conflict of interests |
| 性格の衝突 | Personality clash |
Common Mistakes for English Speakers
English just says “collision” for all of these — so English speakers may use 衝突 everywhere. But if you want to describe being rear-ended in traffic, 追突 is the precise and natural word. Using 衝突 for a rear-end accident is technically understandable but not as precise.
Quick Quiz
Which word describes a car hitting the vehicle directly in front of it?
Answer: 追突 — 前の車に追突した。
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