| 三天 | sān tiān | three days |
| 三天两头 | sān tiān liǎng tóu | lit. twice every three days (idiom); practically every day; frequently |
| 上天入地 | shàng tiān rù dì | lit. to go up to heaven or down to Hades; fig. whichever way, I don't care; to decide to go ahead without foreboding |
| 上西天 | shàng xī tiān | to enter heaven; to rise to the Western Paradise |
| 不啻天渊 | bù chì tiān yuān | no less than from heaven to the abyss (idiom); differing widely; worlds apart; the gap couldn't be bigger |
| 不知天高地厚 | bù zhī tiān gāo dì hòu | not to know the immensity of heaven and earth; an exaggerated opinion of one's own abilities |
| 不终天年 | bù zhōng tiān nián | to die before one’s allotted lifespan has run its course (idiom) |
| 不见天日 | bù jiàn tiān rì | all black, no daylight (idiom); a world without justice |
| 中国国家航天局 | Zhōng guó Guó jiā Háng tiān jú | China National Space Administration (CNSA) |
| 中国天主教爱国会 | Zhōng guó Tiān zhǔ jiào Ài guó huì | Chinese Patriotic Catholic Association |
中国石油天然气集
团公司 | Zhōng guó Shí yóu Tiān rán qì Jí tuán Gōng sī | China National Petroleum Corporation |
| 中国航天工业公司 | zhōng guó háng tiān gōng yè gōng sī | (CASC) |
中国航天技术进出
口公司 | zhōng guó háng tiān jì shù jìn chū kǒu gōng sī | China National Aero-Technology Import-Export Corporation (CATIC) |
中华人民共和国国
家航天局 | Zhōng huá Rén mín Gòng hé guó Guó jiā Háng tiān jú | China National Space Administration (CNSA) |
| 乳白天空 | rǔ bái tiān kōng | whiteout |
| 五天 | wǔ tiān | five days |
人不为己，
天诛地灭 | rén bù wèi jǐ ,
tiān zhū dì miè | Look out for yourself, or heaven and earth will combine to destroy you.; Every man for himself, and the Devil take the hindmost. |
| 人命关天 | rén mìng guān tiān | human life is beyond value (idiom) |
| 人定胜天 | rén dìng shèng tiān | man can conquer nature (idiom); human wisdom can prevail over nature |
| 人算不如天算 | rén suàn bù rú tiān suàn | God's plans supercede our own; Man proposes but God disposes |
| 人造天体 | rén zào tiān tǐ | artificial satellite |
| 人间天堂 | rén jiān tiān táng | heaven on Earth; nickname for the city Suzhou |
| 仰天 | yǎng tiān | to face upwards; to look up to the sky |
| 任天堂 | Rèn tiān táng | Nintendo |
| 俞天白 | Yú Tiān bái | Yu Tianbai (1937-), novelist |
| 信天翁 | xìn tiān wēng | albatross (family Diomedeidae) |
| 倚天屠龙记 | yǐ tiān tú lóng jì | Heaven Sword and Dragon Sabre, wuxia (武侠, martial arts chivalry) novel by Jin Yong 金庸 and its screen adaptations |
做一天和尚，
撞一天钟 | zuò yī tiān hé shang ,
zhuàng yī tiān zhōng | as a monk for today, toll today's bell (idiom); to do one's job mechanically; to hold a position passively |
| 伤天害理 | shāng tiān hài lǐ | to offend Heaven and reason (idiom); bloody atrocities that cry to heaven; outrageous acts |
先天下之忧而忧，
后天下之乐而乐 | xiān tiān xià zhī yōu ér yōu ,
hòu tiān xià zhī lè ér lè | The first concern is affairs of state, enjoying the pleasure comes later. Quotation from essay On Yueyang Tower 岳阳楼记 by Song writer Fan Zhongyan 范仲淹 |
| 先天性 | xiān tiān xìng | congenital; intrinsic; innateness |
| 先天性缺陷 | xiān tiān xìng quē xiàn | birth defect |
| 先天愚型 | xiān tiān yú xíng | Down syndrome; trisomy 21 |
| 全天 | quán tiān | whole day |
| 全天候 | quán tiān hòu | all-weather |
| 两天 | liǎng tiān | two days |
| 八十天环游地球 | Bā shí tiān huán yóu dì qiú | Around the World in Eighty Days by Jules Verne 儒勒・凡尔纳[Ru2 le4 · Fan2 er3 na4] |
| 八天 | bā tiān | eight-day; eight days |
| 冒天下之大不韪 | mào tiān xià zhī dà bù wěi | to defy world opinion; to risk universal condemnation |
| 冶天 | Yě Tiān | ATI, brand name of AMD graphics cards |
| 刑天 | Xíng tiān | Xingtian, headless giant hero of Chinese mythology decapitated by the Yellow Emperor 黄帝 |
| 别有洞天 | bié yǒu dòng tiān | place of charm and beauty; scenery of exceptional charm; completely different world |
| 前一天 | qián yī tiān | the day before (an event) |
| 前半天 | qián bàn tiān | morning; a.m.; first half of the day |
| 前半天儿 | qián bàn tiānr | erhua variant of 前半天, morning; a.m.; first half of the day |
| 前几天 | qián jǐ tiān | a few days before |
| 刘天华 | Liú Tiān huá | Liu T'ien-hua |
| 包打天下 | bāo dǎ tiān xià | to run everything (idiom); to monopolize the whole business; not allow anyone else to have a look in |
| 包青天 | Bāo Qīng tiān | Bao Qingtian, fictional nickname of Bao Zheng 包拯 (999-1062), Northern Song official renowned for his honesty |
| 北京航空航天大学 | Běi jīng Háng kōng Háng tiān Dà xué | Beijing University of Aeronautics and Astronautics |
