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collision

noun

col·​li·​sion kə-ˈli-zhən How to pronounce collision (audio)
Synonyms of collisionnext
1
: an act or instance of colliding : clash
2
: an encounter between particles (such as atoms or molecules) resulting in exchange or transformation of energy
collisional adjective
collisionally adverb
Choose the Right Synonym for collision

impact, collision, shock, concussion mean a forceful, even violent contact between two or more things.

impact may be used to imply contact between two things, at least one of which is impelled toward the other.

the glass shattered on impact with the floor

collision implies the coming together of two or more things with such force that both or all are damaged or their progress is severely impeded.

the collision damaged the vehicle

shock often denotes the effect produced by a collision and carries the suggestion of something that strikes or hits with force.

the shock of falling rocks

concussion when not in technical use, often suggests the shattering, disrupting, or weakening effects of a collision, explosion, or blow.

bystanders felt the concussion of the blast

Examples of collision in a Sentence

The car was destroyed in the collision. the collision of two opposing philosophies regarding the rearing of children
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Winnipeg Jets defenseman Haydn Fleury was stretchered off the ice after a collision with the boards during the first period of Tuesday night’s game against the Vegas Golden Knights. Jesse Granger, New York Times, 7 Jan. 2026 The victim, who still hasn't been identified by authorities, was taken to a nearby hospital for treatment on severe injuries suffered in the collision. Dean Fioresi, CBS News, 6 Jan. 2026 The collision occurred near the Andamooka Township, authorities revealed in the release. Gabrielle Rockson, PEOPLE, 6 Jan. 2026 The collision must have been caused by drugs or alcohol, and only immediate family members of the deceased can apply. Don Sweeney, Sacbee.com, 6 Jan. 2026 See All Example Sentences for collision

Word History

Etymology

Middle English, from Latin collision-, collisio, from collidere

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of collision was in the 15th century

Browse Nearby Words

Cite this Entry

“Collision.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/collision. Accessed 13 Jan. 2026.

Kids Definition

collision

noun
col·​li·​sion kə-ˈlizh-ən How to pronounce collision (audio)
: an act or instance of colliding

More from Merriam-Webster on collision

Last Updated: - Updated example sentences
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