| 对抗者 | duì kàng zhě | adversary; opponent |
| 对抗赛 | duì kàng sài | duel; match; competition between paired opponents (e.g. sporting) |
| 对接 | duì jiē | to join up; to dock; a joint (between components) |
| 对换 | duì huàn | to exchange; to swap |
| 对撞 | duì zhuàng | to collide; a collision |
| 对撞机 | duì zhuàng jī | a particle collider |
| 对攻 | duì gōng | to attack (one another) |
| 对敌 | duì dí | to confront; to face the enemy |
| 对敌者 | duì dí zhě | rival |
| 对方付款电话 | duì fāng fù kuǎn diàn huà | collect call |
| 对方付费电话 | duì fāng fù fèi diàn huà | collect call |
| 对日 | duì Rì | (policy etc) towards Japan |
| 对杯 | duì bēi | to raise glasses together; to toast one another |
| 对歌 | duì gē | answering phrase of duet; to sing antiphonal answer |
| 对比度 | duì bǐ dù | contrast (balance of black and white in TV screen setup); degree of contrast |
| 对比温度 | duì bǐ wēn dù | temperature contrast; difference in temperature (of body to its surroundings) |
| 对比联想 | duì bǐ lián xiǎng | word association; association of ideas |
| 对比色 | duì bǐ sè | color contrast |
| 对氨基苯丙酮 | duì ān jī běn bǐng tóng | p-aminopropiophenone |
| 对决 | duì jué | versus; stand off between two opponents |
| 对流层顶 | duì liú céng dǐng | tropopause; top of troposphere |
| 对火 | duì huǒ | to ask for a light |
| 对焦 | duì jiāo | to focus (a camera); focusing |
| 对照表 | duì zhào biǎo | comparison table |
| 对牛弹琴 | duì niú tán qín | to play the lute to a cow (idiom); fig. offering a treat to a unappreciative audience; to cast pearls before swine; caviar to the general; to preach to deaf ears; to talk over sb's head |
| 对症 | duì zhèng | correct diagnosis; to prescribe the right cure for an illness; to suit the medicine to the illness |
| 对症发药 | duì zhèng fā yào | lit. to prescribe the right medicine for an illness (idiom); fig. to study a problem to find the right way to solve it; to take appropriate steps |
| 对称性 | duì chèn xìng | symmetry |
| 对称破缺 | duì chèn pò quē | symmetry breaking (physics) |
| 对称空间 | duì chèn kōng jiān | symmetric space (math.) |
| 对空射击 | duì kōng shè jī | anti-aircraft fire; to shoot at enemy planes |
| 对空火器 | duì kōng huǒ qì | anti-aircraft gun |
| 对答 | duì dá | a reply; answer |
| 对答如流 | duì dá rú liú | able to reply quickly and fluently (idiom); having a ready answer |
| 对簿 | duì bù | to confront sb with accusation; written charge in court (in former times); to take sb to court |
| 对簿公堂 | duì bù gōng táng | public courtroom accusation (idiom); legal confrontation; to take sb to court; to sue |
| 对美 | duì Měi | (policy etc) towards America |
| 对胃口 | duì wèi kǒu | to one's taste; tasty; fig. sth one enjoys |
| 对台 | duì tái | (policy etc) towards Taiwan |
| 对苯醌 | duì běn kūn | 1,4-benzoquinone (chemistry); para-benzoquinone |
| 对茬儿 | duì chár | to agree with; of the same opinion; to coincide |
| 对华 | duì Huá | (policy etc) towards China |
| 对着干 | duì zhe gàn | to adopt confrontational posture; to meet head-on; to compete |
| 对号 | duì hào | checkmark; number for verification (serial number, seat number etc); fig. two things match up |
| 对号入座 | duì hào rù zuò | lit. to take one's appointed place (according to the seat number); fig. to put sb in his place; to accept one's social role; to admit criticism |
| 对虾科 | duì xiā kē | penaeidae (the prawn or shrimp family) |
| 对冲 | duì chōng | hedging (finance) |
| 对冲基金 | duì chōng jī jīn | hedge fund |
| 对襟 | duì jīn | buttoned Chinese jacket |
| 对衬 | duì chèn | to serve as foil to one another |
