| English | eng-000 |
| belowground | |
| asturianu | ast-000 | soterrañu |
| brezhoneg | bre-000 | dindandouar |
| 普通话 | cmn-000 | 地下 |
| 普通话 | cmn-000 | 地下的 |
| 國語 | cmn-001 | 地下 |
| 國語 | cmn-001 | 地下的 |
| eesti | ekk-000 | maa-alune |
| eesti | ekk-000 | mulla all |
| English | eng-000 | chthonic |
| English | eng-000 | mass rapid transit |
| English | eng-000 | speluncar |
| English | eng-000 | subterranean |
| English | eng-000 | subterraneous |
| English | eng-000 | subway |
| English | eng-000 | subway system |
| English | eng-000 | tube |
| English | eng-000 | ulterior |
| English | eng-000 | underground |
| Esperanto | epo-000 | subgrunda |
| suomi | fin-000 | maan alla |
| suomi | fin-000 | maan alla oleva |
| suomi | fin-000 | maan alta |
| suomi | fin-000 | maanalainen |
| suomi | fin-000 | underground |
| français | fra-000 | sous terre |
| français | fra-000 | souterraine |
| français | fra-000 | underground |
| galego | glg-000 | de vangarda |
| galego | glg-000 | underground |
| Srpskohrvatski | hbs-001 | podzemno |
| Srpskohrvatski | hbs-001 | potajno |
| Srpskohrvatski | hbs-001 | prikriveno |
| italiano | ita-000 | sotterranea |
| македонски | mkd-000 | подземен |
| Nederlands | nld-000 | onderaards |
| polski | pol-000 | podziemny |
| português | por-000 | subterrânea |
| русский | rus-000 | под землёй |
| русский | rus-000 | подземный |
| slovenčina | slk-000 | protestný |
| español | spa-000 | subterráneo |
| українська | ukr-000 | підземний |
| українська | ukr-000 | підпільний |
| Bahasa Malaysia | zsm-000 | bawah tanah |