col·​li·​sion | \ kə-ˈli-zhən How to pronounce collision (audio) \

Definition of collision

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

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Other Words from collision

collisional \ kə-​ˈlizh-​nəl How to pronounce collisional (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

Lauderdale, was pulling up to the gate when the collision occurred, per a statement released by Southwest. Michael Bartiromo, Fox News, "Pickup truck collides with Southwest plane at Baltimore airport," 2 Oct. 2018 Both intercept objects in orbit, smashing them by direct collision. Kyle Mizokami, Popular Mechanics, "India Smashes Satellite in a Surprise Test of a New Space Weapon System," 28 Mar. 2019 Video footage posted by FOX40 Sacramento captured the tense scene leading up to the collision. Fox News, "Sheriff's vehicle hits woman during Stephon Clark protest in Sacramento," 2 Oct. 2018 Witnesses reported seeing the squad’s emergency lights flashing and hearing its siren prior to the collision, police said. Susan Demar Lafferty, Daily Southtown, "Will County sheriff's deputy involved in crash," 3 July 2018 Chu said that a few hours later, Los Angeles Police Department officers responded to a collision in North Hollywood involving the Lexus sedan. Sara Cardine,, "Transient man held on suspicion of grand theft, walking in on LCF resident and her daughter," 27 June 2018 He was seen by numerous witnesses driving erratically in the moments leading up to the collision. Chris Harris,, "Victim Confronts the Man Who Mowed Down Her and 8 Other Cyclists — Killing 5 — While Driving Drunk," 11 June 2018 Officers responded to the two-vehicle collision on the Route 1 northbound ramp to Interstate 95 South at 10:25 a.m., State Police spokesman Dustin Fitch said. Elise Takahama,, "One person hospitalized with serious injuries after rollover crash in Dedham," 6 June 2018 Enfield police responded to a collision between a tractor trailer and a pickup truck just after 7 p.m Tuesday night. Ruth Bruno,, "One Person In Critical Condition After Enfield Collision," 30 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'collision.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of collision

15th century, in the meaning defined at sense 1

History and Etymology for collision

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

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Statistics for collision

Last Updated

21 Apr 2019

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Time Traveler for collision

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

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English Language Learners Definition of collision

: a crash in which two or more things or people hit each other
: a situation in which people or groups disagree : a clash or conflict


col·​li·​sion | \ kə-ˈli-zhən How to pronounce collision (audio) \

Kids Definition of collision

: an act or instance of colliding

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Comments on collision

What made you want to look up collision? Please tell us where you read or heard it (including the quote, if possible).


not to be persuaded, moved, or stopped

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