00More optionsShareSaveReportVideo vocabularyNo vocabulary matches your filtersbrainUS /bren/・UK /breɪn/Transitive VerbTo strike someone forcefully on the headNoun (Countable/Uncountable)The part of the head that thinksA smart person who often makes good decisionsA1More mmUS ・UK InterjectionSomething you say when you are satisfiedA1More Use EnergyUnlock All VocabularyUnlock pronunciation, explanations, and filtersUnlock