concussion C2 Topic:Law & Government US /kənˈkʊʃən/ UK /kənˈkʌʃən/ See IPA manual Freq #9150 Meanings 1 noun A violent collision or shock. It is believed that great ringing of bells, in populous cities, hath dissipated pestilent air; which may be from the concussion of the air. 2 noun The unlawful forcing of another by threats of violence to yield up something of value. Then Concussion, Rapine, Pillories, / Their Catalogue of Accusations fill. 3 noun any violent blow 4 noun injury to the brain caused by a blow Thesaurus Word family Derived forms concussionalconcussionlikepostconcussionsubconcussion Related forms concussquash Etymology From Latin concussiō. Equivalent to concuss + -ion. Topics Law & Government External links Cambridge Dictionary Wiktionary Google Images # concussion **Type:** Word **Level:** C2 **Part of speech:** noun **IPA (US):** /kənˈkʊʃən/ **IPA (UK):** /kənˈkʌʃən/ **Frequency rank:** 9150 ## Meanings 1. A violent collision or shock. 2. The unlawful forcing of another by threats of violence to yield up something of value. 3. any violent blow 4. injury to the brain caused by a blow ## Examples - It is believed that great ringing of bells, in populous cities, hath dissipated pestilent air; which may be from the concussion of the air. - Then Concussion, Rapine, Pillories, / Their Catalogue of Accusations fill. ## Derived Forms - concussional - concussionlike - postconcussion - subconcussion ## Related Forms - concuss - quash ## Etymology From Latin concussiō. Equivalent to concuss + -ion. ## Topics - Law & Government markdown