| euskara | eus-000 |
| isilpean | |
| English | eng-000 | in secrecy |
| English | eng-000 | in secret |
| English | eng-000 | in silence |
| English | eng-000 | privately |
| English | eng-000 | secretly |
| English | eng-000 | silent |
| euskara | eus-000 | ezkutuan |
| euskara | eus-000 | gordean |
| euskara | eus-000 | isilean |
| euskara | eus-000 | isilka |
| euskara | eus-000 | sekretupean |