| Subject | English | Estonian |
| comp., MS | fallback action | taandetoiming (The action that an Exchange Server 2007 transport rule takes if a disclaimer cannot be applied to an e-mail message as, for example, when a message is encrypted) |
| environ. | fallback approach | varuvariant |
| comp., MS | fallback form | varuvorm (A form that is displayed when another form option isn't explicitly set. An example would be if an administrator fails to define a form for a particular security group that has access to the application) |
| comp., MS | fallback language | taandekeel (The base language that appears when a string has not been localized into a partially localized language) |
| commer., transp., avia. | fallback mode of operation | alternatiivne töörežiim |
| comp., MS | ultimate fallback language | lõplik taandekeel (A final fallback language independent of user and system preferences. Resources for this language may either be built into the language-neutral portable executable, or otherwise guaranteed (through the installation process) to be always available) |