脳 Simplified/traditional character 脳 English definition nǎo Japanese variant of 腦|脑 Characters with the same pronunciation 垴 : small hill; used in geographic names; 嫐 : to tease; to play around with; 恼 : to get angry; 悩 : Japanese variant of 惱|恼; 瑙 : agate; 脑 : brain; mind; head; essence; 𡿺 : 𡿺 垴 悩