| polski | pol-000 |
| dobrowolny | |
| العربية | arb-000 | اختياري |
| luenga aragonesa | arg-000 | voluntario |
| asturianu | ast-000 | voluntariu |
| বাংলা | ben-000 | স্বেচ্ছাসেবী |
| brezhoneg | bre-000 | youlek |
| bălgarski ezik | bul-001 | dobrovolen |
| català | cat-000 | voluntari |
| čeština | ces-000 | dobrovolný |
| 普通话 | cmn-000 | 义务 |
| 普通话 | cmn-000 | 自愿 |
| 普通话 | cmn-000 | 自行 |
| 國語 | cmn-001 | 義務 |
| 國語 | cmn-001 | 自行 |
| 國語 | cmn-001 | 自願 |
| Hànyǔ | cmn-003 | yì wu |
| Hànyǔ | cmn-003 | zì xing |
| Hànyǔ | cmn-003 | zì yuan |
| Cymraeg | cym-000 | gwirfoddol |
| dansk | dan-000 | frivillig |
| Deutsch | deu-000 | freiwillig |
| Deutsch | deu-000 | gutwillig |
| ελληνικά | ell-000 | αβίαστος |
| ελληνικά | ell-000 | εθελοντικός |
| ελληνικά | ell-000 | εθελούσιος |
| ελληνικά | ell-000 | εκούσιος |
| ελληνικά | ell-000 | θεληματικός |
| ελληνικά | ell-000 | προαιρετικός |
| Ellinika | ell-003 | ethelontikós |
| Ellinika | ell-003 | proairetikós |
| English | eng-000 | freewill |
| English | eng-000 | optionally |
| English | eng-000 | unsolicited |
| English | eng-000 | voluntarily |
| English | eng-000 | voluntary |
| Esperanto | epo-000 | fakultativa |
| Esperanto | epo-000 | libervola |
| Esperanto | epo-000 | nedeviga |
| Esperanto | epo-000 | nedevigita |
| Esperanto | epo-000 | propra-vola |
| Esperanto | epo-000 | propravola |
| Esperanto | epo-000 | spontanea |
| Esperanto | epo-000 | vola |
| Esperanto | epo-000 | volonta |
| Esperanto | epo-000 | volontula |
| euskara | eus-000 | boluntario |
| euskara | eus-000 | borondatezko |
| føroyskt | fao-000 | sjálvboðin |
| suomi | fin-000 | halukas |
| suomi | fin-000 | omaehtoinen |
| suomi | fin-000 | talkoo |
| suomi | fin-000 | vapaaehtoinen |
| suomi | fin-000 | vapaaehtois- |
| français | fra-000 | bénévole |
| français | fra-000 | bénévolement |
| français | fra-000 | de son plein gré |
| français | fra-000 | facultatif |
| français | fra-000 | spontané |
| français | fra-000 | volontaire |
| Gàidhlig | gla-000 | saor-thoileach |
| galego | glg-000 | voluntario |
| hrvatski | hrv-000 | dobrovoljne |
| magyar | hun-000 | önként |
| magyar | hun-000 | önkéntes |
| արևելահայերեն | hye-000 | կամավոր |
| Ido | ido-000 | spontana |
| bahasa Indonesia | ind-000 | sukarela/fakultatif |
| íslenska | isl-000 | sjálfviljugur |
| italiano | ita-000 | spontaneo |
| italiano | ita-000 | volontari |
| italiano | ita-000 | volontariamente |
| italiano | ita-000 | volontario |
| 日本語 | jpn-000 | 志願して |
| ქართული | kat-000 | ნებაყოფლობითი |
| 한국어 | kor-000 | 수의적인 |
| 한국어 | kor-000 | 지원의 |
| latine | lat-000 | automatus |
| latine | lat-000 | voluntarius |
| lietuvių | lit-000 | savanoriškas |
| македонски | mkd-000 | доброволен |
| македонски | mkd-000 | доброволски |
| reo Māori | mri-000 | tüao |
| Nederlands | nld-000 | vrijwillig |
| bokmål | nob-000 | frivillig |
| bokmål | nob-000 | godvillig |
| occitan | oci-000 | volontari |
| occitan | oci-000 | voluntari |
| پښتو ژبه | pbu-000 | اختياري |
| polski | pol-000 | dobrowolnie |
| polski | pol-000 | ochotniczo |
| polski | pol-000 | ochotniczy |
| polski | pol-000 | samorzutny |
| português | por-000 | espontaneamente |
| português | por-000 | livremente |
| português | por-000 | voluntária |
| português | por-000 | voluntário |
| română | ron-000 | voluntar |
| русский | rus-000 | безвозмездный |
| русский | rus-000 | доброво́льный |
| русский | rus-000 | добровольный |
| русский | rus-000 | добровольческий |
| русский | rus-000 | самопроизвольный |
| russkij | rus-001 | dobrowol'no |
| russkij | rus-001 | dobrowol'nyj |
| संस्कृतम् | san-000 | आभिप्रायिक |
| slovenčina | slk-000 | dobrovoľný |
| slovenščina | slv-000 | prostovoljen |
| español | spa-000 | a voluntad |
| español | spa-000 | espontáneo |
| español | spa-000 | voluntariamente |
| español | spa-000 | voluntario |
| Lengua de signos española | ssp-000 | sha:yoweb |
| svenska | swe-000 | frivillig |
| Kiswahili | swh-000 | hiari |
| తెలుగు | tel-000 | స్వచ్ఛంద |
| ภาษาไทย | tha-000 | มีอิสระในการเลือก |
| ภาษาไทย | tha-000 | โดยอาสาสมัคร |
| Türkçe | tur-000 | gönüllü |
| Türkçe | tur-000 | isteyerek yapılan |
| Türkçe | tur-000 | kasıtlı |
| Türkçe | tur-000 | özgür iradeli |
| українська | ukr-000 | добровольчий |
| українська | ukr-000 | добровільний |
| ייִדיש | ydd-000 | פֿרײַוויליק |