Nouns

(n)brain, encephalonthat part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord
(n)brain, brainpower, learning ability, mental capacity, mentality, witmental ability“he's got plenty of brains but no common sense”
(n)mind, head, brain, psyche, nousthat which is responsible for one's thoughts, feelings, and conscious brain functions; the seat of the faculty of reason“his mind wandered”, “I couldn't get his words out of my head”
(n)genius, mastermind, brain, brainiac, Einstein, wondersomeone who has exceptional intellectual ability and originality“Mozart was a child genius”, “he's smart but he's no Einstein”
(n)brainthe brain of certain animals used as meat

Verbs

(v)brainhit on the head
(v)brainkill by smashing someone's skull