| 当事 | dāng shì | effective (in some matter); involved (in some matter) |
| 当事者 | dāng shì zhě | the person involved; the people holding power |
| 当仁不让 | dāng rén bù ràng | to be unwilling to pass on one's responsibilities to others |
| 当代史 | dāng dài shǐ | contemporary history |
| 当代新儒家 | dāng dài xīn rú jiā | Contemporary New Confucianism; see 新儒家 |
| 当作 | dàng zuò | treat as; regard as |
| 当啷 | dāng lāng | metallic sound; clanging (onomatopoeia) |
| 当回事 | dàng huí shì | to take seriously (often with negative expression: "don't take it too seriously"); to treat conscientiously |
| 当回事儿 | dàng huí shìr | erhua variant of 当回事, to take seriously (often with negative expression: "don't take it too seriously"); to treat conscientiously |
| 当地居民 | dāng dì jū mín | a local person; the local population |
| 当地时间 | dāng dì shí jiān | local time |
| 当夜 | dàng yè | that night |
| 当天事当天毕 | dàng tiān shì dàng tiān bì | never put off until tomorrow what you can do today (idiom) |
当局者迷，
旁观者清 | dāng jú zhě mí ,
páng guān zhě qīng | The person on the spot is baffled, the onlooker sees clear (idiom). The onlooker sees more of the game. |
| 当成 | dàng chéng | to consider as; take to be |
| 当政者 | dāng zhèng zhě | power holder; current political ruler |
| 当时的 | dāng shí de | of that time; former |
| 当机 | dàng jī | to crash (of a computer; loan from English down); to stop working |
| 当机立断 | dāng jī lì duàn | to make prompt decisions (idiom) |
| 当归 | dāng guī | Angelica sinensis |
| 当涂 | Dāng tú | Dangtu county in Ma'anshan 马鞍山, Anhui |
| 当涂县 | Dāng tú xiàn | Dangtu county in Ma'anshan 马鞍山, Anhui |
| 当演员 | dāng yǎn yuán | to go on stage |
| 当班 | dāng bān | to work one's shift |
| 当红 | dāng hóng | currently popular (of movie stars, singers etc) |
| 当街 | dāng jiē | in the middle of the street; facing the street |
| 当量剂量 | dāng liàng jì liàng | equivalent dose |
| 当阳市 | Dāng yáng shì | Dangyan county level city in Yichang 宜昌, Hubei |
| 当雄 | Dāng xióng | Damxung county, Tibetan: 'Dam gzhung rdzong in Lhasa 拉萨, Tibet |
| 当雄县 | Dāng xióng xiàn | Damxung county, Tibetan: 'Dam gzhung rdzong in Lhasa 拉萨, Tibet |
| 当驾 | dāng jià | imperial driver |
