| 古 | gǔ | ancient; old; paleo-; surname Gu |
| 古代 | gǔ dài | ancient times; olden times |
| 古巴 | Gǔ bā | Cuba |
| 蒙古 | Měng gǔ | Mongolia |
| 内蒙古 | Nèi měng gǔ | Inner Mongolia; abbr. for Inner Mongolia autonomous region 内蒙古自治区 |
| 古老 | gǔ lǎo | ancient; old; age-old |
| 古人 | gǔ rén | people from ancient times; the ancients; the late (i.e. person who has passed away) |
| 古典 | gǔ diǎn | classical |
| 古文 | gǔ wén | old language; the Classics; classical Chinese as a literary model, esp. in Tang and Song prose; classical Chinese as a school subject |
| 自古 | zì gǔ | (since) ancient times; (from) time immemorial |
| 复古 | fù gǔ | to return to old ways (a Confucian aspiration); to turn back the clock; neoclassical school during Tang and Song associated with classical writing 古文; retro (fashion style based on nostalgia, esp. for 1960s) |
| 古今 | gǔ jīn | then and now; ancient and modern |
| 古迹 | gǔ jì | places of historic interest; historical sites; CL:个 |
| 考古 | kǎo gǔ | archaeology |
| 古典文学 | gǔ diǎn wén xué | classical literature |
| 蒙古族 | Měng gǔ zú | Mongol ethnic group of north China and Inner Mongolia |
| 古籍 | gǔ jí | antiquarian book |
| 千古 | qiān gǔ | for all eternity; throughout all ages |
| 古书 | gǔ shū | ancient book; old book |
| 远古 | yuǎn gǔ | antiquity; ancient times |
| 自古以来 | zì gǔ yǐ lái | since ancient times |
| 古城 | gǔ chéng | old town |
| 古怪 | gǔ guài | eccentric; grotesque; oddly; queer |
| 古诗 | gǔ shī | old verse; classical Chinese poem |
| 上古 | shàng gǔ | the distant past; ancient times; antiquity; early historical times |
| 古今中外 | gǔ jīn zhōng wài | at all times and in all places (idiom) |
| 新古典主义 | xīn gǔ diǎn zhǔ yì | neoclassicism |
| 古董 | gǔ dǒng | curio; antique |
| 蒙古人 | Měng gǔ rén | Mongol |
| 太古 | tài gǔ | immemorial |
| 考古学 | kǎo gǔ xué | archaeology |
| 中古 | zhōng gǔ | medieval; Middle Ages; Chinese middle antiquity, 3rd to 9th centuries, including Sui and Tang Dynasties; Middle (of a language, eg Middle English); used; second-hand; Sino-Cuban; China-Cuba |
| 古物 | gǔ wù | antique |
| 古来 | gǔ lái | since ancient times; it has ever been the case that; see also 自古以来 |
| 古时候 | gǔ shí hou | in ancient times; in olden days |
| 万古长青 | wàn gǔ cháng qīng | remain fresh; last forever; eternal |
| 作古 | zuò gǔ | to die; to pass away |
| 古旧 | gǔ jiù | archaic |
| 古都 | gǔ dū | the old capital |
| 怀古 | huái gǔ | to recall the past; to cherish memory of past event |
| 仿古 | fǎng gǔ | pseudo-classical; modeled on antique; in the old style |
| 古往今来 | gǔ wǎng jīn lái | since ancient times; since times immemorial |
| 古生物 | gǔ shēng wù | paleo-organism |
| 一失足成千古恨 | yī shī zú chéng qiān gǔ hèn | lit. one wrong step causes thousand hatred (idiom); A single slip may cause lasting sorrow. |
| 世界性古老问题 | shì jiè xìng gǔ lǎo wèn tí | a problem as old as the world itself |
| 中古汉语 | zhōng gǔ Hàn yǔ | middle and early Chinese (linguistics) |
| 中国古代四大美女 | Zhōng guó gǔ dài sì dà měi nǚ | Four legendary beauties of ancient China, namely: Xi Shi 西施, Wang Zhaojun 王昭君, Diaochan 貂蝉 and Yang Yuhuan 杨玉环 or Yang Guifei 杨贵妃 |
| 亘古 | gèn gǔ | throughout time; from ancient times (up to the present) |
| 亘古未有 | gèn gǔ wèi yǒu | unprecedented; never seen since ancient times |
| 亘古通今 | gèn gǔ tōng jīn | from ancient times up to now; throughout history |
