| 羟自由基 | qiǎng zì yóu jī | hydroxyl radical |
| 羧基酸 | suō jī suān | carboxylic acid |
| 耶稣基督 | Yē sū Jī dū | Jesus Christ |
耶稣基督后期圣徒
教会 | Yē sū Jī dū Hòu qī Shèng tú Jiào huì | The Church of Jesus Christ of Latter-day Saints |
耶稣基督末世圣徒
教会 | Yē sū Jī dū Mò shì Shèng tú Jiào huì | The Church of Jesus Christ of Latter-day Saints |
| 圣基茨和尼维斯 | Shèng jī cí hé Ní wéi sī | Saint Kitts and Nevis |
| 联合国儿童基金会 | Lián hé guó Ér tóng Jī jīn huì | United Nations Children's Fund; UNICEF |
| 肯塔基 | Kěn tǎ jī | Kentucky, US state |
| 肯塔基州 | Kěn tǎ jī zhōu | Kentucky, US state |
| 肯德基 | Kěn dé jī | KFC; Kentucky Fried Chicken |
| 肯德基炸鸡 | kěn dé jī zhá jī | Kentucky Fried Chicken (KFC) |
| 肽基 | tài jī | peptide group; peptide unit |
| 胺基酸 | àn jī suān | amino acid; also written 氨基酸 |
| 腓尼基 | féi ní jī | Phoenician |
| 自然科学基金会 | zì rán kē xué jī jīn huì | natural science fund |
| 自由基清除剂 | zì yóu jī qīng chú jì | radical scavenger (chemistry) |
| 自由软件基金会 | Zì yóu Ruǎn jiàn Jī jīn huì | Free Software Foundation |
| 台基 | tái jī | stylobate (architecture) |
| 莫尼卡・莱温斯基 | Mò ní kǎ · Lái wēn sī jī | Monica Lewinsky |
| 莱温斯基 | lái wēn sī jī | (Monica) Lewinsky |
| 落基山 | Luò jī shān | Rocky mountains in west US and Canada |
| 兰博基尼 | Lán bó jī ní | Lamborghini |
| 西科尔斯基 | Xī kē ěr sī jī | Sikorski (name); Radosław Sikorski (1950-), Polish conservative politician, foreign minister of Poland from 2007 |
| 视窗基准 | shì chuāng jī zhǔn | Windows based |
| 诺基亚 | Nuò jī yà | Nokia (company name) |
| 诺姆・乔姆斯基 | Nuò mǔ · Qiáo mǔ sī jī | Noam Chomsky (American linguist and political activist) |
| 超基性岩 | chāo jī xìng yán | ultrabasic rock (geology, rock containing less than 45 percent silicates) |
| 转基因 | zhuǎn jī yīn | genetic modification |
| 转基因食品 | zhuǎn jī yīn shí pǐn | genetically modified (GM) food |
| 转氨基酶 | zhuǎn ān jī méi | amino transferase (enzyme) |
| 迦太基 | Jiā tài jī | Carthage |
| 酮基 | tóng jī | ketone group |
| 醛基 | quán jī | aldehyde group -COH |
| 野生生物基金会 | yě shēng shēng wù jī jīn huì | World Wildlife Fund WWF |
| 闵科夫斯基 | Mǐn kē fū sī jī | Minkowski (name); Hermann Minkowski (1864-1909), German mathematician |
| 阿基米德 | Ā jī mǐ dé | Archimedes (c. 287-212 BC) |
| 陀思妥也夫斯基 | Tuó sī tuǒ yě fū sī jī | Fyodor Mikhailovich Dostoevsky (1821-1881), great Russian novelist, author of Crime and Punishment 罪与罚; also written 陀思妥耶夫斯基 |
| 陀思妥耶夫斯基 | Tuó sī tuǒ yē fū sī jī | Fyodor Mikhailovich Dostoevsky (1821-1881), great Russian novelist, author of Crime and Punishment 罪与罚 |
| 陆基 | lù jī | land-based |
| 陆基导弹 | lù jī dǎo dàn | land-based missile |
| 隐性基因 | yǐn xìng jī yīn | recessive gene |
| 零基础 | líng jī chǔ | from scratch; from basics |
| 显性基因 | xiǎn xìng jī yīn | dominant gene |
| 马利基 | Mǎ lì jī | Maliki or Al-Maliki (name); Nouri Kamel al-Maliki (1950-) prime minister of Iraq from 2006 |
| 马兰基地 | Mǎ lán jī dì | Malan atomic test site in Bayin'guoleng Mongol autonomous prefecture 巴音郭愣蒙古自治州, Xinjiang |
| 高尔基复合体 | gāo ěr jī fù hé tǐ | Golgi complex (in cell biology) |
| 高尔基体 | Gāo ěr jī tǐ | Golgi apparatus |
| 碱基 | jiǎn jī | nucleotide (in nucleic acid) |
| 碱基互补配对 | jiǎn jī hù bǔ pèi duì | complementary base pairing e.g. adenine A 腺嘌呤 pairs with thymine T 胸腺嘧啶 in DNA |
| 碱基对 | jiǎn jī duì | base pair (bp) consisting of two complementary nucleotides (adenine A 腺嘌呤 paired with thymine T 胸腺嘧啶 in DNA) |
