col·li·sion | \kə-ˈli-zhən \

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, -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

From 2012 through 2016, the San Francisco Municipal Transportation Agency logged 44 collisions involving cyclists on that stretch of roadway. Rachel Swan,, "Bicyclists protest as city plans for safer lanes hit bumps," 13 July 2018 Formed in collisions involving cosmic rays, neutrinos can tell scientists where a cosmic ray has been. Mark Johnson, Milwaukee Journal Sentinel, "Blazing a trail: UW professor's dream leads to breakthrough in identifying origin of cosmic rays," 12 July 2018 Standard equipment includes the EyeSight Driver Assist Technology package with lane-departure warning and forward collision/emergency braking. Dan Neil, WSJ, "2019 Subaru Ascent: A Bigger, Better Family SUV," 12 July 2018 But scientists recently learned that collisions between particles of the solar wind and stray particles of Earth's atmosphere produce low energy x-rays that light up the magnetosphere. Dennis Normile, Science | AAAS, "New China space missions will watch for colliding black holes, solar blasts," 11 July 2018 The injury reportedly occurred following a collision between the goalkeeper and youngster Francesco Mezzoni., "New Signing Alex Meret Suffers Serious Injury During SSC Napoli Training," 11 July 2018 Tomasek was also charged with criminally damaging village property, driving off the road and failing to report a collision, police said. Staff Report, Daily Southtown, "Southland police blotter," 10 July 2018 Extra innings: Yoan Moncada left the game in the fifth inning after bruising his right knee in a collision with Paulo Orlando on a pickoff attempt at second base., "From the hospital to the mound, new father Reynaldo Lopez stays in control," 14 July 2018 Tristan Carey of Fairbanks and Rachel Weter of Huslia died in the collision, troopers said in an alert posted Thursday. Zaz Hollander, Anchorage Daily News, "Two 21-year-olds killed in Parks Highway collision with double-tanker truck," 12 July 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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Phrases Related to collision

head-on collision

on a collision course

Statistics for collision

Last Updated

6 Oct 2018

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Time Traveler for collision

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

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More Definitions for collision



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 \

Kids Definition of collision

: an act or instance of colliding

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Comments on collision

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not any or not one

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