| Gàidhlig | gla-000 |
| a h-ochd deug | |
| العربية | arb-000 | ثمانية عشر |
| ארמית | arc-000 | תמנעסר |
| ארמית | arc-000 | תמנעסרא |
| bosanski | bos-000 | osamnaest |
| brezhoneg | bre-000 | triwecʼh |
| čeština | ces-000 | osmnáct |
| 普通话 | cmn-000 | 十八 |
| 國語 | cmn-001 | 十八 |
| Cymraeg | cym-000 | deunaw |
| Cymraeg | cym-000 | un deg wyth |
| dansk | dan-000 | atten |
| Deutsch | deu-000 | achtzehn |
| eesti | ekk-000 | kaheksateist |
| ελληνικά | ell-000 | δεκαοκτώ |
| English | eng-000 | eighteen |
| Esperanto | epo-000 | dek ok |
| euskara | eus-000 | hemezortzi |
| suomi | fin-000 | kahdeksantoista |
| français | fra-000 | dix-huit |
| Frysk | fry-000 | achttjin |
| עִברִית | heb-003 | שְׁמוֹנֶה־עֶשְׂרֵה |
| עִברִית | heb-003 | שְׁמוֹנָה־עָשָׂר |
| हिन्दी | hin-000 | अठारह |
| magyar | hun-000 | tizennyolc |
| bahasa Indonesia | ind-000 | delapan belas |
| íslenska | isl-000 | átján |
| italiano | ita-000 | diciotto |
| 日本語 | jpn-000 | 十八 |
| kalaallisut | kal-000 | arvirsaniq-pingasut |
| 한국어 | kor-000 | 열여덟 |
| latine | lat-000 | duodeviginti |
| līvõ kēļ | liv-000 | kōdõkstuoistõn |
| latviešu | lvs-000 | astoņpadsmit |
| Malti | mlt-000 | tmintax |
| Nederlands | nld-000 | achttien |
| bokmål | nob-000 | atten |
| Novial | nov-000 | dek-ot |
| polski | pol-000 | osiemnaście |
| português | por-000 | dezoito |
| română | ron-000 | optsprezece |
| русский | rus-000 | восемнадцать |
| saṃskṛtam | san-001 | astaadashan |
| සිංහල | sin-000 | දහඅට |
| español | spa-000 | dieciocho |
| српски | srp-000 | осамнаест |
| srpski | srp-001 | osamnaest |
| svenska | swe-000 | aderton |
| svenska | swe-000 | arton |
| ܠܫܢܐ ܣܘܪܝܝܐ | syc-000 | ܬܡܢܥܣܪ |
| ܠܫܢܐ ܣܘܪܝܝܐ | syc-000 | ܬܡܢܥܣܪܐ |
| తెలుగు | tel-000 | పద్దెనిమిది |
| Tagalog | tgl-000 | labingwalo |
| Türkçe | tur-000 | on sekiz |
| اردو | urd-000 | اٹھارہ |