撞击 (zhuàng jī) is a verb meaning 'to collide with' or 'to crash into' — describing a forceful, often sudden physical impact between two objects or bodies. The first character 撞 (zhuàng) means 'to bump into' or 'to hit', carrying the sense of unintended or abrupt contact; the second character 击 (jī) means 'to strike' or 'to hit forcefully', reinforcing the energy and intensity of the impact. Together, they form a compound emphasizing violent, dynamic contact — not gentle touching or brushing, but a significant collision that may cause damage, noise, or movement.

This word is commonly used in contexts involving vehicles, natural phenomena (e.g., meteor impacts), sports, physics, or accidents. It appears frequently in news reports, scientific descriptions, and safety instructions. While it can be used transitively ('The car撞击ed the barrier'), it’s often paired with prepositions like 与 (with), 与...发生 (to have a collision with...), or in passive constructions. It conveys seriousness and consequence, making it more formal and weighty than simpler verbs like 碰 (pèng) or 撞 (zhuàng) alone.