| 热导 | rè dǎo | thermal conduction |
| 热岛 | rè dǎo | heat island (i.e. large city centers are hotter) |
| 热岛效应 | rè dǎo xiào yìng | heat island effect (i.e. large city centers are hotter) |
| 热带地区 | rè dài dì qū | the Tropics |
| 热带风暴 | rè dài fēng bào | tropical storm |
| 热带鱼 | rè dài yú | tropical fish |
| 热得快 | rè de kuài | immersion heater; electric heater for liquid |
| 热情洋溢 | rè qíng yáng yì | brimming with enthusiasm (idiom); full of warmth |
| 热恋 | rè liàn | to fall head over heels in love; to be passionately in love |
| 热捧 | rè pěng | a craze; a popular wave; a hit with the public |
| 热插拔 | rè chā bá | hot swapping |
| 热昏 | rè hūn | to be overcome by the heat |
| 热核反应堆 | rè hé fǎn yìng duī | thermal reactor |
| 热核武器 | rè hé wǔ qì | fusion weapon; thermonuclear weapon |
| 热核聚变反应 | rè hé jù biàn fǎn yìng | thermonuclear fusion reaction |
| 热比亚 | Rè bǐ yà | Rabiye or Rebiya (name); Rebiya Kadeer or Rabiye Qadir (1947-), Uighur businesswoman and activist, imprisoned 1999-2005, then President of the World Uighur Congress |
| 热比亚・卡德尔 | Rè bǐ yà · Kǎ dé ěr | Rebiya Kadeer or Rabiye Qadir (1947-), Uighur businesswoman and activist, imprisoned 1999-2005, then President of the World Uighur Congress |
| 热比娅 | Rè bǐ yà | Rabiye or Rebiya (name); Rebiya Kadeer or Rabiye Qadir (1947-), Uighur businesswoman and activist, imprisoned 1999-2005, then President of the World Uighur Congress |
| 热比娅・卡德尔 | Rè bǐ yà · Kǎ dé ěr | Rebiya Kadeer or Rabiye Qadir (1947-), Uighur businesswoman and activist, imprisoned 1999-2005, then President of the World Uighur Congress |
| 热气球 | rè qì qiú | hot air balloon |
| 热水器 | rè shuǐ qì | water heater |
| 热水澡 | rè shuǐ zǎo | hot bath or shower |
| 热水袋 | rè shuǐ dài | hot water bottle; hot-water bag |
| 热河 | Rè hé | Rehe, Qing dynasty province abolished in 1955 and divided among Hebei, Liaoning and Inner Mongolia; refers to the Qing imperial resort at Chengde; see also 避暑山庄 (history) |
| 热浪 | rè làng | a heatwave |
| 热炒热卖 | rè chǎo rè mài | lit. to sell hot food freshly cooked; fig. to teach what one has just learned; enthusiasm of the new convert |
| 热焓 | rè hán | enthalpy; heat content (thermodynamics) |
| 热烫 | rè tàng | to burn |
| 热尔韦 | Rè ěr wéi | Gervais (name); Paul Gervais (1816-1879), French geologist |
| 热狗 | rè gǒu | hot dog |
| 热痉挛 | rè jìng luán | heat cramps |
| 热络 | rè luò | intimate; friendly; warm; active; lively (interaction, participation etc) |
| 热线 | rè xiàn | hotline (communications link) |
| 热脉冲 | rè mài chōng | thermal pulse |
| 热肠 | rè cháng | warm hearted |
| 热茶 | rè chá | hot tea |
| 热血沸腾 | rè xuè fèi téng | to be burning with anger (idiom) |
| 热衷 | rè zhōng | to feel strongly about; to be fond of; obsession; deep commitment |
| 热补 | rè bǔ | hot patching (of insulating material in a furnace); hot patching (runtime correction in computing) |
| 热裤 | rè kù | hot pants |
| 热解 | rè jiě | thermal cleavage (i.e. sth splits when heated) |
| 热议 | rè yì | to discuss passionately; heated debate |
| 热卖 | rè mài | hot selling; best seller |
| 热卖品 | rè mài pǐn | hot-selling property |
| 热身 | rè shēn | to warm oneself |
| 热身赛 | rè shēn sài | exhibition game |
| 热连球菌 | rè lián qiú jūn | Streptococcus thermophilus |
| 热量单位 | rè liàng dān wèi | thermal unit; unit of heat |
| 热销 | rè xiāo | hot selling; popular product |
| 热门 | rè mén | popular; hot; in vogue |
