| Subject | English | Spanish |
| patents. | master copy | tirada original |
| comp., MS | master copy | copia maestra (The most recently checked-in version of a file or project stored in a Visual SourceSafe database) |
| cinema | master copy | máster |
| commun. | master copy | copia matriz |
| commun. | master copy | montaje original |
| cinema | master copy | copia original |
| law | master copy | texto matriz |
| gen. | master copy | copia maestra (An original document, recording, film, etc., from which copies can be made) |
| commun., IT | master copy of a plan | plan de referencia |
| commun. | master copy of a text | ejemplar tipo de un texto |