| Subject | English | French |
| avia., Canada, tech. | Common Time Source Distribution System | Système de distribution de la source horaire commune |
| IT | European Source Ter m Code System | European Source Term Code System |
| comp., MS | external source system | système source externe (A data repository, such as a data warehouse, data mart, or OLTP system, that is outside a specific deployment) |
| comp., MS | source system | système source (The system in which application and metadata reside before they are migrated to a different one) |
| commun. | source-coding system | système de codage de la source |
| comp., MS | System Data Source Name | nom de source de données système (A data source name that can be used by any process on the computer) |
| fin. | system of deduction at source | système de retenue à titre d'acompte |