| Subject | English | Portuguese |
| comp., MS, Braz. | application single-threaded apartment | single-threaded apartment de aplicativo (A single-threaded apartment the thread of which is the core UI thread for an application window) |
| comp., MS | application single-threaded apartment | apartamento de thread de aplicação único (A single-threaded apartment the thread of which is the core UI thread for an application window) |
| gen. | single application for assistance | pedido único de contribuição |
| immigr., empl. | single application procedure | procedimento de pedido único |
| gen. | Working Party on the Application of the Single Act | Grupo de Trabalho "Aplicação do Ato Único" |