| 1 | 脑 | 腦 | nǎo | nao3 | brain; mind; head; essence | | |
| 2 | 脑袋 | 腦袋 | nǎo dai | nao3 dai5 | head; skull; brains; mental capability; Classifiers: 颗 ,个 | | |
| 3 | 脑子 | 腦子 | nǎo zi | nao3 zi5 | brains; mind; Classifiers: 个 | | |
| 4 | 脑海 | 腦海 | nǎo hǎi | nao3 hai3 | the mind; the brain | | |
| 5 | 脑力劳动 | 腦力勞動 | nǎo lì láo dòng | nao3 li4 lao2 dong4 | mental labor; intellectual work | | |
| 6 | 脑筋 | 腦筋 | nǎo jīn | nao3 jin1 | brains; mind; head; way of thinking | | |
| 7 | 脑后 | 腦後 | nǎo hòu | nao3 hou4 | the back of the head; (fig.) the back of one's mind | | |
| 8 | 脑壳 | 腦殻 | nǎo ké | nao3 ke2 | skull; (fig.) brain (mental capacity); skull | | |
| 9 | 脑梗塞 | 腦梗塞 | nǎo gěng sè | nao3 geng3 se4 | cerebral infarction | | |
| 10 | 脑岛 | 腦島 | nǎo dǎo | nao3 dao3 | insula | | |
| 11 | 脑瓜儿 | 腦瓜兒 | nǎo guā r | nao3 gua1 r5 | erhua variant of 脑瓜 | | |
| 12 | 脑瓜 | 腦瓜 | nǎo guā | nao3 gua1 | skull; brain; head; mind; mentality; ideas | | |
| 13 | 脑沟 | 腦溝 | nǎo gōu | nao3 gou1 | sulcus (neuroanatomy) | | |
| 14 | 脑梗死 | 腦梗死 | nǎo gěng sǐ | nao3 geng3 si3 | cerebral infarction | | |
| 15 | 脑干 | 腦幹 | nǎo gàn | nao3 gan4 | brain stem | | |
| 16 | 脑洞大开 | 腦洞大開 | nǎo dòng dà kāi | nao3 dong4 da4 kai1 | imaginative; to have one's mind buzzing with ideas | | |
| 17 | 脑电波 | 腦電波 | nǎo diàn bō | nao3 dian4 bo1 | see 脑波 | | |
| 18 | 脑袋开花 | 腦袋開花 | nǎo dài kāi huā | nao3 dai4 kai1 hua1 | to blow one's brain out | | |
| 19 | 脑卒中 | 腦卒中 | nǎo cù zhòng | nao3 cu4 zhong4 | stroke; cerebral hemorrhage | | |
| 20 | 脑出血 | 腦出血 | nǎo chū xuè | nao3 chu1 xue4 | cerebral hemorrhage | | |
| 21 | 脑充血 | 腦充血 | nǎo chōng xuè | nao3 chong1 xue4 | stroke; cerebral hemorrhage | | |
| 22 | 脑残粉 | 腦殘粉 | nǎo cán fěn | nao3 can2 fen3 | (slang) fanboy; fangirl | | |
| 23 | 脑残 | 腦殘 | nǎo cán | nao3 can2 | moronic; brainless; bonehead; retard | | |
| 24 | 脑子有泡 | 腦子有泡 | nǎo zi yǒu pào | nao3 zi5 you3 pao4 | soft in the head; brainless; dumb | | |
| 25 | 脑波 | 腦波 | nǎo bō | nao3 bo1 | brain wave; EEG | | |