| ภาษาไทย | tha-000 |
| โดยสมัครใจ | |
| català | cat-000 | obstinat |
| čeština | ces-000 | schválný |
| 國語 | cmn-001 | 彊 |
| Hànyǔ | cmn-003 | jiang |
| Deutsch | deu-000 | absichtlich |
| ελληνικά | ell-000 | προμελετημένος |
| English | eng-000 | by choice |
| English | eng-000 | elective |
| English | eng-000 | freely |
| English | eng-000 | intentional |
| English | eng-000 | optional |
| English | eng-000 | voluntarily |
| English | eng-000 | voluntary |
| English | eng-000 | volunteer |
| English | eng-000 | wilful |
| English | eng-000 | willing |
| English | eng-000 | willingly |
| Esperanto | epo-000 | intenca |
| euskara | eus-000 | temati |
| suomi | fin-000 | vapaaehtoisesti |
| français | fra-000 | bénévolement |
| français | fra-000 | volontairement |
| hiMxI | hin-004 | svecCAcArI |
| hrvatski | hrv-000 | dobrovoljno |
| hrvatski | hrv-000 | hotimičan |
| hrvatski | hrv-000 | svojevoljan |
| magyar | hun-000 | szándékos |
| bahasa Indonesia | ind-000 | dengan sukarela |
| íslenska | isl-000 | sjálfráður |
| italiano | ita-000 | intenzionale |
| italiano | ita-000 | volontariamente |
| 日本語 | jpn-000 | 意識的な |
| 日本語 | jpn-000 | 自発的に |
| 日本語 | jpn-000 | 随意的 |
| ქართული | kat-000 | შეგნებული |
| ქართული | kat-000 | წინასწარ განზრახული |
| polski | pol-000 | swawolny |
| português | por-000 | voluntariamente |
| português | por-000 | voluntàriamente |
| slovenščina | slv-000 | prostovoljno |
| slovenščina | slv-000 | svojevoljno |
| español | spa-000 | doloso |
| español | spa-000 | voluntariamente |
| svenska | swe-000 | avsiktlig |
| Kiswahili | swh-000 | hiari |
| ภาษาไทย | tha-000 | ซึ่งเปิดให้เลือก |
| ภาษาไทย | tha-000 | ด้วยความสมัครใจ |
| ภาษาไทย | tha-000 | ด้วยความเต็มใจ |
| ภาษาไทย | tha-000 | โดยอาสาสมัคร |
| Türkçe | tur-000 | kasti |
| Türkçe | tur-000 | kasıtlı |