collision

noun

col·​li·​sion kə-ˈli-zhən How to pronounce collision (audio)
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
kə-ˈlizh-nəl How to pronounce collision (audio)
-ˈli-zhə-nᵊl
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.
Read, 45, of Mansfield faces charges of second-degree murder, manslaughter while operating a motor vehicle under the influence, and leaving the scene of a collision causing death. Flint McColgan, Boston Herald, 7 May 2025 The Minnesota Timberwolves may have robbed the NBA’s media partners of a quarterfinals collision between perennial ratings champs LeBron James and Steph Curry, but the league has momentum on its side as the second round of the playoffs begins to heat up. Anthony Crupi, Sportico.com, 7 May 2025 The crash occurred Saturday around 5 p.m. when officers were dispatched to the 1400 block of Durham Road on the report of motorcycle collision, according to Officer Alex Torres of the Wallingford Police Department. Justin Muszynski, Hartford Courant, 7 May 2025 The Manhattan Beach Police Department said in a press release that officers responded to a report of a traffic collision between a car and pedestrian on Sepulveda Boulevard in the early morning hours of May 4. Melina Khan, USA Today, 7 May 2025 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 18 May. 2025.

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

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