| euskara | eus-000 |
| ezkutuan | |
| English | eng-000 | backstage |
| English | eng-000 | secretly |
| English | eng-000 | undercover |
| euskara | eus-000 | gordean |
| euskara | eus-000 | isil-gordean |
| euskara | eus-000 | isilean |
| euskara | eus-000 | isilka |
| euskara | eus-000 | isilpean |
| español | spa-000 | a escondidas |