| interlingua | ina-000 |
| dece-octave | |
| Romániço | art-013 | decem-ochésima |
| čeština | ces-000 | osmnáctý |
| dansk | dan-000 | attende |
| Deutsch | deu-000 | achtzehnte |
| Ellinika | ell-003 | dekatos ogdoos |
| English | eng-000 | eighteenth |
| Esperanto | epo-000 | dek-oka |
| Esperanto | epo-000 | dekoka |
| suomi | fin-000 | kahdeksastoista |
| français | fra-000 | dix-huitième |
| Hellēnikḗ | grc-001 | ogdoos kai dekatos |
| hrvatski | hrv-000 | osamnaesta |
| hrvatski | hrv-000 | osamnaesti |
| hrvatski | hrv-000 | osamnaesto |
| Ido | ido-000 | dek-e-okesma |
| italiano | ita-000 | diciottesima |
| italiano | ita-000 | diciottesimo |
| latine | lat-000 | duodevicensimus |
| latine | lat-000 | duodevicesimus |
| latine | lat-000 | octavus decimus |
| Nederlands | nld-000 | achttiende |
| polski | pol-000 | osiemnasta |
| polski | pol-000 | osiemnasti |
| polski | pol-000 | osiemnasty |
| português | por-000 | décimo-oitavo |
| russkij | rus-001 | wosjemnadzatyj |
| español | spa-000 | decimoctava |
| español | spa-000 | decimoctavo |
| svenska | swe-000 | artonde |