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.

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Other Words from concussion

concussive \ kən-​ˈkə-​siv How to pronounce concussive (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 Krizaj said Gasner, who has been with the department for 19 years, is recovering at home from a concussion sustained while battling the fire. Adelle Whitefoot, Twin Cities, "Suspect named in Duluth synagogue fire, but authorities aren’t calling it a hate crime," 15 Sep. 2019 Lowe said, but healing from the concussion, as well as broken bones in his face, took time and effort., "BSO concertmaster Malcolm Lowe retires after 35 years - The Boston Globe," 13 Sep. 2019 After a year on the practice squad and a season on injured reserve because of symptoms from a concussion, Gathers made the team last year., "Report: Cards fail to get deal with ex-49ers, Raiders receiver Michael Crabtree," 6 Aug. 2019 Limited in summer league because of a concussion suffered during the Heat's time in the California Classic in Sacramento, Cooke has signed to play for Medi Bayreuth. Ira Winderman,, "Winderman: Outside signings might prove more impactful to Heat | Commentary," 3 Aug. 2019 Bruins defenseman Matt Grzelcyk has been cleared to return from his concussion. Mike Brehm, USA TODAY, "Stanley Cup Final: Time, TV, streaming info and everything you need for Game 7 of Bruins-Blues," 10 June 2019 INJURY UPDATES Boston got Gordon Hayward back from a concussion and Aron Baynes returned after missing a game with a left ankle sprain. Kyle Hightower, The Seattle Times, "Aldridge’s 48 lead Spurs past Celtics 115-96," 24 Mar. 2019 Love missed Wednesday's win over Charlotte because of a concussion. Joe Vardon,, "Kevin Love questionable, Kyle Korver out tonight against Pelicans," 30 Mar. 2018 Lindsay Whalen retired, Rebekkah Brunson sat out because of a concussion and Maya Moore decided to take the year off. Doug Feinberg,, "WNBA postseason gets underway with pair of first-round games," 11 Sep. 2019

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.

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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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Statistics for concussion

Last Updated

24 Oct 2019

Time Traveler for concussion

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

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More Definitions for concussion


How to pronounce concussion (audio)

English Language Learners Definition of concussion

: an injury to the brain that is caused by something hitting the head very hard


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 concussive (audio) \ adjective

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Comments on concussion

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


meddlesome, informal, or unofficial

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