| euskara | eus-000 |
| isilka | |
| English | eng-000 | in secrecy |
| English | eng-000 | in secret |
| English | eng-000 | in silence |
| English | eng-000 | secretly |
| English | eng-000 | silent |
| English | eng-000 | silently |
| English | eng-000 | softly |
| euskara | eus-000 | ezkutuan |
| euskara | eus-000 | gordean |
| euskara | eus-000 | isil |
| euskara | eus-000 | isilean |
| euskara | eus-000 | isilik |
| euskara | eus-000 | isilpean |
| français | fra-000 | à voix basse |