| huī | ash/dust/lime/gray/discouraged/dejected |
| 灰 | ash dust lime |
| 灰不喇唧 | dull gray gray and loathsome |
| 灰不溜丢 | gloomy and dull (idiom); boring and gray unpleasantly murky |
| 灰不溜秋 | A variant of 灰不溜丢. |
| 灰光灯 | limelight; lime-light |
| 灰分 | ash content; ash specification; content of ashes; ash; ashes |
| 灰化 | incineration; incinerate; cineration; ashing; cinefaction; chalking |
| 灰化土 | podsol; podzolic soil; podzol; podzoluvisols |
| 灰口铁 | graphitic pig iron; gray iron; gray cast iron |
| 灰土 | spodosol; orthod; lime soil |
| 灰坑 | an ash pit; a clinker pit |
| 灰壤 | podzol; podsol; podzols |
| 灰头土脸 | lit. head and face filthy with grime (idiom); fig. dejected and depressed |
| 灰姑娘 | Cinderella a sudden rags-to-riches celebrity |
| 灰尘 | dust |
| 灰岩 | limestone CL:塊|块 |
| 灰岩残丘 | mogote (steep-sided pointed hill in karst landform) |
| 灰市 | grey market |
| 灰度 | gray scale; grey scale; gradation; grayscale; gray level; shade of gray |
| 灰心 | lose heart be discouraged |