con·​cus·​sion | \ kən-ˈkə-shən How to pronounce concussion (audio) \

Definition of concussion

1a : a stunning, damaging, or shattering effect from a hard blow especially : a jarring injury of the brain resulting in disturbance of cerebral function The football player suffered a concussion.
b : a hard blow or collision
2 : agitation, shaking The concussion from the explosion was felt 12 miles away.

Other Words from concussion

concussive \ kən-​ˈkə-​siv How to pronounce concussion (audio) \ adjective

Choose the Right Synonym for concussion

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 concussion in a Sentence

She suffered a severe concussion after falling on the ice. He went to hospital with concussion.
Recent Examples on the Web With Alex Caruso in concussion protocol, the Bulls might be down two starters for their must-win game. Paul Sullivan, Chicago Tribune, 26 Apr. 2022 Reds catcher Tyler Stephenson has been in concussion protocol this week following his collision at the plate against the San Diego Padres. Charlie Goldsmith, The Enquirer, 24 Apr. 2022 Michigan was dealt a blow this week when it was determined that starting point guard DeVante’ Jones was ruled out of this game because of a concussion suffered recently during practice. Adam Zagoria, New York Times, 17 Mar. 2022 Taylor Rapp will not play because of a concussion, so Weddle will rotate with Nick Scott and Terrell Burgess. Los Angeles Times, 17 Jan. 2022 Before Saturday, the third-round draft pick from Auburn had played 22 offensive snaps since then and missed three games because of a concussion. Mark Inabinett |, al, 25 Dec. 2021 Stevenson, who didn’t practice all week because of a concussion suffered in Carolina rushed 20 times for his first 100-yard effort. Jim Mcbride,, 14 Nov. 2021 After a hard crash nearly halfway through his first Indy 500, Askew would struggle with undiagnosed concussion-like symptoms at WWT Raceway and Mid-Ohio. Nathan Brown, The Indianapolis Star, 1 Sep. 2021 After missing the last few weeks of 2020-21 because of a nasty concussion, Stevens is healthy again. Chris Fedor, cleveland, 7 Aug. 2021 See More

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

First Known Use of concussion

14th century, in the meaning defined at sense 1a

History and Etymology for concussion

Middle English concussioun, from Latin concussion-, concussio, from concutere to shake violently, from com- + quatere to shake

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The first known use of concussion was in the 14th century

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Last Updated

13 May 2022

Cite this Entry

“Concussion.” Dictionary, Merriam-Webster, Accessed 21 May. 2022.

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More Definitions for concussion


con·​cus·​sion | \ kən-ˈkə-shən How to pronounce concussion (audio) \

Kids Definition of concussion

: injury to the brain caused by a hard hit on the head


con·​cus·​sion | \ kən-ˈkəsh-ən How to pronounce concussion (audio) \

Medical Definition of concussion

1 : a hard blow or collision
2 : a condition resulting from the stunning, damaging, or shattering effects of a hard blow especially : a jarring injury of the brain resulting in disturbance of cerebral function and sometimes marked by permanent damage

Other Words from concussion

concussive \ -​ˈkəs-​iv How to pronounce concussion (audio) \ adjective

More from Merriam-Webster on concussion

Nglish: Translation of concussion for Spanish Speakers

Britannica English: Translation of concussion for Arabic Speakers Encyclopedia article about concussion


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