Dictionary definition · brain
noun
- that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord
- mental ability"he's got plenty of brains but no common sense"
- that which is responsible for one's thoughts, feelings, and conscious brain functions; the seat of the faculty of reason"his mind wandered"
- someone who has exceptional intellectual ability and originality"Mozart was a child genius"
- the brain of certain animals used as meat
verb
- hit on the head
- kill by smashing someone's skull
Source: Open English WordNet (CC BY 4.0).