Added 6 October 2026 briefcase /ˈbɹiːfˌkeɪs/ noun Categories: ThingsRare Words In Latin: scrīnium Wiktionary noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about briefcase at Wordnik → Where our words come from → A case used for carrying documents, especially for business. In Microsoft Windows, a folder that supports file synchronization between itself and another folder. Origin From brief + case. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: valisesuitcaseluggagebaggagebackpacksatchelboxpursebagpouchpackagepad Back to today's word