| 瘋 | [ fēng ] insane, mad, wild |
| 瘋子 | [ fēng zi ] madman, lunatic |
| 瘋牛病 | [ fēng niú bìng ] mad cow disease (bovine spongiform encephalopathy) |
| 瘋犬 | [ fēng quǎn ] mad dog, rabid dog |
| 瘋狂 | [ fēng kuáng ] crazy, frantic, extreme popularity |
| 瘋瘋癲癲 | [ fēng feng diān diān ] deranged, erratic |
| 瘋癱 | [ fēng tān ] variant of 風癱|风瘫[feng1 tan1] |
| 瘋癲 | [ fēng diān ] insane, crazy |
| 瘋話 | [ fēng huà ] crazy talk, ravings, nonsense |
| ⇒ 人來瘋 | [ rén laí fēng ] to get hyped up in front of an audience, (of children) to play up in front of guests |
| ⇒ 嚇瘋 | [ xià fēng ] to be scared senseless |
| ⇒ 愛瘋 | [ aì fēng ] iPhone (slang) |
| ⇒ 撒酒瘋 | [ sā jiǔ fēng ] to get drunk and act crazy, roaring drunk |
| ⇒ 林來瘋 | [ lín laí fēng ] Linsanity, craze over Jeremy Lin 林書豪|林书豪[Lin2 Shu1 hao2] |
| ⇒ 瘋瘋癲癲 | [ fēng feng diān diān ] deranged, erratic |
| ⇒ 發瘋 | [ fā fēng ] to go mad, to go crazy, to lose one's mind |
| ⇒ 發酒瘋 | [ fā jiǔ fēng ] to get wildly drunk |
| ⇒ 羊癲瘋 | [ yáng diān fēng ] epilepsy |
| ⇒ 羊角瘋 | [ yáng fēng ] variant of 羊角風|羊角风[yang2 jiao3 feng1] |
| ⇒ 裝瘋賣傻 | [ zhuāng fēng maì shǎ ] to play the fool (idiom), to feign madness |
| ⇒ 麻瘋 | [ má fēng ] leprosy, also written 麻風|麻风 |