| 事情 | shì qing | affair / matter / thing / business / CL:件[jian4],樁|桩[zhuang1] |   |
| 艳遇 | yàn yù | encounter with a beautiful woman / romance / affair | |
| 物事 | wù shì | (literary) affair / matter / business / (dialect) item / thing / stuff | |
| 事 |  shì | matter / thing / item / work / affair / CL:件[jian4],樁|桩[zhuang1],回[hui2] | |
| 暧昧关系 | ài mèi guān xì | shady relationship / affair / adulterous relationship | |
| 务 | wù | affair / business / matter / to be engaged in / to attend to / by all means | |
| 縡 | zài | matter / affair | |
| 恋爱 | liàn ài | (romantic) love / CL:個|个[ge4],場|场[chang3] / in love / to have an affair | |
| 桃花 | táo huā | peach blossom / (fig.) love affair | |
| 春光 | chūn guāng | scenes of springtime / the radiance of spring / (fig.) a sight of sth sexy or erotic / an indication of a love affair | |
| 交朋友 | jiāo péng you | to make friends / (dialect) to start an affair with sb | |
| 走私 | zǒu sī | to smuggle / to have an illicit affair | |
| 偷情 | tōu qíng | to carry on a clandestine love affair | |
| 出轨 | chū guǐ | to be derailed / to go off the rails / (fig.) to overstep the bounds / (fig.) to have an extramarital affair | |
| 要务 | yào wù | key task / important affair | |
| 婚外情 | hūn wài qíng | extramarital affair | |
| 旧事 | jiù shì | old affair / former matter | |
| 私情 | sī qíng | personal considerations / love affair | |
| 争风吃醋 | zhēng fēng chī cù | to rival sb for the affection of a man or woman / to be jealous of a rival in a love affair | |
| 有一手 | yǒu yī shǒu | to have a skill / to have a lot on the ball / to have an affair | |
| 胡搞 | hú gǎo | to mess around / to mess with something / to have an affair | |
| 虐恋 | nu:è liàn | painful love affair / sadomasochism | |
| 縡 | zǎi | matter, affair | |
| 风花雪月 | fēng huā xuě yuè | wind, flower, snow and moon, trite poetry subject (idiom) / effete language without substance / love affair / romance is in the air / dissipated life | |
| 脚踏两只船 | jiǎo tà liǎng zhī chuán | to have a foot in both camps / to have a bet each way / to be having an affair | |
| 风流韵事 | fēng liú yùn shì | poetic and passionate (idiom) / romance / love affair | |
| 外遇 | wài yù | extramarital affair | |
| 罗曼史 | luó màn shǐ | romance (loanword) / love affair | |
| 情事 | qíng shì | circumstances / facts (of a case) / case / feelings / love affair | |
| 网恋 | wǎng liàn | online love affair / cyberdate / Internet dating | |
| 德雷福斯案件 | Dé léi fú sī àn jiàn | Dreyfus affair 1894-1906, notorious political scandal in France case involving antisemitism and miscarriage of justice | |
| 有染 | yǒu rǎn | to have an affair with sb | |
| 棘楚 | jí chǔ | thorny problem / troublesome affair | |
| 烟花债 | yān huā zhài | involved in a love affair | |
| 狗男女 | gǒu nán nu:3 | a couple engaged in an illicit love affair / a cheating couple | |
| 罗曼使 | luó màn shǐ | romance / love affair / more commonly written 羅曼史|罗曼史 | |
| 风流债 | fēng liú zhài | lit. love debt / fig. moral obligation in consequence of a love affair / karmic consequences of a love affair | |
| 风流佳话 | fēng liú jiā huà | romance / romantic affair | |
| 偷腥 | tōu xīng | to cheat on one's spouse / to have an affair | |
| 有一腿 | yǒu yī tuǐ | (coll.) to have an affair | |
| 烂桃花 | làn táo huā | unhappy love affair | |
| 地下情 | dì xià qíng | secret love affair | |
| 言情 | yán qíng | (of a movie, novel etc) portraying a love affair / romantic / sentimental | |
| 畸恋 | jī liàn | improper love affair / unhealthy relationship (age-inappropriate, obsessive, incestuous etc) | |
