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

Keep scrolling for more

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 His replacement, DeShon Elliott, is bracing for Baltimore’s collision with Henry on Sunday. Mark Inabinett |, al, "NFL Week 11: Ravens strap up helmets for Derrick Henry," 19 Nov. 2020 As the captain slowed to avoid a collision, the large ship was soon upon them. Los Angeles Times, "Sunken boats. Stolen gear. Fishermen are prey as China conquers a strategic sea," 12 Nov. 2020 In seeking a low bond for his client in court Friday, defense attorney Lawrence Wolk argued that Woods was partly to blame for the deadly collision. Wayne K. Roustan,, "Driver charged with vehicular homicide in pregnant woman’s death," 6 Nov. 2020 While Ghaisar was not legally at fault for the collision, he was mandated to stay at the scene. Washington Post, "Park Police officers charged by grand jury with manslaughter in 2017 slaying of unarmed motorist Bijan Ghaisar," 15 Oct. 2020 Georgia star Richard LeCounte got the boot in the second period for a helmet-to-helmet collision with Auburn receiver Shedrick Jackson. Paul Newberry, Star Tribune, "Stetson Bennett, No. 4 Georgia romp past No. 7 Auburn 27-6," 4 Oct. 2020 Eckert was booked into a Maricopa County jail Thursday and is facing a possible charge of failing to stop for a fatality collision. Katelyn Keenehan, The Arizona Republic, "Man arrested in Mesa hit-and-run that left pedestrian on sidewalk dead," 1 Oct. 2020 After combing through documents and software and interviews with Uber staffers, the safety panel determined that lots of people were responsible for the collision. Aarian Marshall, Wired, "Why Wasn't Uber Charged in a Fatal Self-Driving Car Crash?," 17 Sep. 2020 The possible collision will likely not be visible to the naked eye. Robert Hackett, Fortune, "Russian and Chinese spacecrafts could collide in space junk super-spreader," 15 Oct. 2020

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.

See More

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

Keep scrolling for more

Learn More about collision

Time Traveler for collision

Time Traveler

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

See more words from the same century

Statistics for collision

Last Updated

22 Nov 2020

Cite this Entry

“Collision.” Dictionary, Merriam-Webster, Accessed 28 Nov. 2020.

Keep scrolling for more

More Definitions for collision


How to pronounce collision (audio)

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

Keep scrolling for more

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).


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!