| euskara | eus-000 |
| isilean | |
| català | cat-000 | en secret |
| català | cat-000 | secretament |
| čeština | ces-000 | potají |
| 普通话 | cmn-000 | 私自 |
| 國語 | cmn-001 | 私自 |
| Hànyǔ | cmn-003 | sī zi |
| Deutsch | deu-000 | insgeheim |
| English | eng-000 | backstage |
| English | eng-000 | behind somebody’s back |
| English | eng-000 | in secret |
| English | eng-000 | in silence |
| English | eng-000 | off-the-record |
| English | eng-000 | quiet |
| English | eng-000 | quietly |
| English | eng-000 | secretly |
| English | eng-000 | silent |
| English | eng-000 | silently |
| English | eng-000 | under cover |
| English | eng-000 | undercover |
| Esperanto | epo-000 | kaŝite |
| Esperanto | epo-000 | sekrete |
| euskara | eus-000 | ahapeka |
| euskara | eus-000 | ezkutuan |
| euskara | eus-000 | gordean |
| euskara | eus-000 | isil |
| euskara | eus-000 | isil-gordean |
| euskara | eus-000 | isilik |
| euskara | eus-000 | isilka |
| euskara | eus-000 | isilpean |
| suomi | fin-000 | pimeästi |
| français | fra-000 | en secret |
| français | fra-000 | secrètement |
| français | fra-000 | silencieusement |
| galego | glg-000 | en segredo |
| ἑλληνικὴ γλῶττα | grc-000 | κρυφᾷ |
| ἑλληνικὴ γλῶττα | grc-000 | κρυφῆ |
| kreyòl ayisyen | hat-000 | anba chal |
| Srpskohrvatski | hbs-001 | kriomice |
| Srpskohrvatski | hbs-001 | krišom |
| Srpskohrvatski | hbs-001 | tajno |
| Srpskohrvatski | hbs-001 | криомице |
| Srpskohrvatski | hbs-001 | кришом |
| Srpskohrvatski | hbs-001 | тајно |
| hrvatski | hrv-000 | kradimice |
| hrvatski | hrv-000 | kradomice |
| hrvatski | hrv-000 | skriveno |
| magyar | hun-000 | titkon |
| magyar | hun-000 | titokban |
| Ido | ido-000 | sekrete |
| bahasa Indonesia | ind-000 | dengan diam-diam |
| italiano | ita-000 | in segreto |
| italiano | ita-000 | occultamento |
| italiano | ita-000 | sottomano |
| 日本語 | jpn-000 | sotto |
| 한국어 | kor-000 | 소리를 내지 않고 |
| latine | lat-000 | clam |
| latine | lat-000 | latenter |
| latine | lat-000 | occulte |
| lietuvių | lit-000 | slaptomis |
| lietuvių | lit-000 | slapčia |
| lietuvių | lit-000 | slapčiom |
| Nāhuatlahtōlli | nci-000 | mixtitlan ayauhtitlan |
| Nederlands | nld-000 | besmuikt |
| Nederlands | nld-000 | geheim |
| español | spa-000 | a la sordina |
| español | spa-000 | de incógnito |
| español | spa-000 | en secreto |
| español | spa-000 | secretamente |
| srpski | srp-001 | krišom |
| srpski | srp-001 | tajom |
| svenska | swe-000 | i hemlighet |
| Türkçe | tur-000 | el altından |
| Türkçe | tur-000 | gizli |
| Türkçe | tur-000 | gizli olarak |
| Türkçe | tur-000 | gizlice |