| български | bul-000 |
| тунелостроене | |
| čeština | ces-000 | tunel |
| dansk | dan-000 | tunnel |
| Deutsch | deu-000 | Tunnelbau |
| eesti | ekk-000 | tunnel |
| ελληνικά | ell-000 | σήραγγα |
| English | eng-000 | tunnel |
| suomi | fin-000 | tunneli |
| français | fra-000 | tunnel |
| hrvatski | hrv-000 | tunel |
| magyar | hun-000 | alagút |
| italiano | ita-000 | tunnel |
| lietuvių | lit-000 | tunelis |
| latviešu | lvs-000 | tunelis |
| Nederlands | nld-000 | tunnel |
| polski | pol-000 | tunel |
| português | por-000 | túnel |
| română | ron-000 | tunel |
| slovenčina | slk-000 | tunel |
| slovenščina | slv-000 | predor |
| español | spa-000 | túnel |
| српски | srp-000 | тунел |
| svenska | swe-000 | tunnel |