| 云贵高原 | Yún Guì gāo yuán | Yunnan and Guizhou plateau in southwest China, covering east Yunnan, whole of Guizhou, west of Guangxi and southern margins of Sichuan, Hubei and Hunan |
| 三原 | Sān yuán | Sanyuan county in Xiányáng 咸阳, Shǎnxī 陕西 |
| 原形 | yuán xíng | archetype; original shape; true colors |
| 原动力 | yuán dòng lì | motive force; prime mover; first cause; agent |
| 原封不动 | yuán fēng bù dòng | sticking unmoving to the original (idiom); not an iota changed; untouched |
| 原函数 | yuán hán shù | antiderivative |
| 原性 | yuán xìng | original nature |
| 原生动物 | yuán shēng dòng wù | protozoan (bacteria) |
| 原型 | yuán xíng | original shape; mold; original form; archetype |
| 东欧平原 | Dōng Ōu píng yuán | East European Plain |
| 华北平原 | huá běi píng yuán | North China plain |
| 大草原 | dà cǎo yuán | prairie; savanna |
| 神经原 | shén jīng yuán | neuron; also written 神经元 |
| 冲积平原 | chōng jī píng yuán | alluvial plain |
| 平原 | píng yuán | field; plain; CL:个 |
| 草原 | cǎo yuán | grassland; prairie; CL:片 |
| 高原 | gāo yuán | plateau; CL:片 |
| 一中原则 | yī zhōng yuán zé | One-China principle, the official doctrine that Taiwan is a province of China |
| 一般原则 | yī bān yuán zé | general principle |
| 三原则 | sān yuán zé | the Three Principles (in many contexts) |
| 三原县 | Sān yuán xiàn | Sanyuan county in Xiányáng 咸阳, Shǎnxī 陕西 |
| 三江平原 | Sān jiāng píng yuán | Sanjiang or Three rivers plain in Heilongjiang, vast wetland watered by Heilongjiang 黑龙江 or Amur, Songhua 松花江, Ussuri 乌苏里江 |
| 不相容原理 | bù xiāng róng yuán lǐ | (Pauli) exclusion principle (physics) |
| 不知出于何种原因 | bù zhī chū yú hé zhǒng yuán yīn | for whatever reason |
| 不确定性原理 | bù què dìng xìng yuán lǐ | Heisenberg's uncertainty principle (1927) |
| 中亚草原 | Zhōng Yà cǎo yuán | Central Asian grasslands |
| 中原区 | Zhōng yuán qū | Zhongyuan district of Zhengzhou city 郑州市, Henan |
| 中原大学 | Zhōng yuán Dà xué | Chung Yuan Christian University, in Taiwan |
中国国家原子能机
构 | Zhōng guó Guó jiā Yuán zǐ néng Jī gòu | China Atomic Energy Agency (CAEA) |
| 九原区 | Jiǔ yuán qū | Jiuyuan district of Baotou city 包头市, Inner Mongolia |
| 五原 | Wǔ yuán | Wuyuan county in Bayan Nur 巴彦淖尔, Inner Mongolia |
| 五原县 | Wǔ yuán xiàn | Wuyuan county in Bayan Nur 巴彦淖尔, Inner Mongolia |
| 亚原子 | yà yuán zǐ | sub-atomic |
| 保持原貌 | bǎo chí yuán mào | to preserve the original form |
| 价原 | Jià yuán | Kagen or the Origin of Value by MIURA Baien 三浦梅园, pioneering study of economics comparable to Adam Smith's The Wealth of Nations 国富论 |
| 内爆法原子弹 | nèi bào fǎ yuán zǐ dàn | implosion atomic bomb |
| 凝血脢原 | níng xuè méi yuán | prothrombin |
| 原人 | yuán rén | prehistoric man; primitive man |
| 原件 | yuán jiàn | the original; original document; master copy |
| 原位 | yuán wèi | original position |
| 原住民 | yuán zhù mín | indigenous peoples; aborigine |
| 原住民族 | yuán zhù mín zú | original inhabitant; indigenous people |
| 原则上 | yuán zé shang | in principle; generally |
| 原创 | yuán chuàng | originality; creativity; innovation |
| 原创性 | yuán chuàng xìng | originality |
| 原南斯拉夫 | yuán Nán sī lā fū | former Yugoslavia (1945-1992) |
| 原名 | yuán míng | original name |
| 原因是 | yuán yīn shì | the reason is... |
| 原地踏步 | yuán dì tà bù | to mark time (military); to make no headway |
| 原址 | yuán zhǐ | original location |
