| English | eng-000 |
| secret language | |
| català | cat-000 | llenguatge secret |
| čeština | ces-000 | tajný jazyk |
| 普通话 | cmn-000 | 密语 |
| 普通话 | cmn-000 | 暗语 |
| Deutsch | deu-000 | Geheimsprache |
| eesti | ekk-000 | salakeel |
| English | eng-000 | allusion |
| English | eng-000 | barge |
| English | eng-000 | cant |
| English | eng-000 | codewords |
| English | eng-000 | jargon |
| English | eng-000 | parable |
| français | fra-000 | jargon |
| français | fra-000 | langage codé |
| français | fra-000 | langage secret |
| français | fra-000 | langue secrète |
| ʻōlelo Hawaiʻi | haw-000 | kake |
| ʻōlelo Hawaiʻi | haw-000 | wehiwa |
| ʻōlelo Hawaiʻi | haw-000 | ʻōlelo huna |
| íslenska | isl-000 | huldumál |
| italiano | ita-000 | linguaggio segerto |
| Jita | jit-000 | echisindo |
| Jita | jit-000 | okusinda |
| Jita | jit-000 | sinda |
| Jita | jit-000 | sindo |
| 日本語 | jpn-000 | 通り言葉 |
| 日本語 | jpn-000 | 隠語 |
| にほんご | jpn-002 | いんご |
| にほんご | jpn-002 | とおりことば |
| Kewa | kew-000 | aga rumula agaa |
| олык марий | mhr-000 | шолып йылме |
| Nederlands | nld-000 | geheimtaal |
| русский | rus-000 | зашифрованный текст |
| русский | rus-000 | код |
| русский | rus-000 | тайный язык |
| русский | rus-000 | шифр |
| chiShona | sna-000 | chibhende |
| chiShona | sna-000 | dzvetu |
| español | spa-000 | lenguaje secreto |
| svenska | swe-000 | hemligt språk |
| svenska | swe-000 | kryptolekt |
| Kiswahili | swh-000 | tambo |
| Tok Pisin | tpi-000 | tok bokis |