| Subject | English | Estonian |
| comp., MS | International System of Units | Rahvusvaheline mõõtühikute süsteem (The international metric system of units of measurement) |
| comp., MS | system of units | ühikute süsteem (A set of units used for measurement or exchange) |
| polit. | Unit for Reengineering of the Financial Information Systems | Finantsteabesüsteemide ümberkorralduse üksus |