Definition of GIF in English: GIF Line breaks: GIFPronunciation: /ɡɪf / noun [mass noun] Computing 1A lossless format for image files that supports both animated and static images: [as modifier]: a GIF image 1.1 [count noun] A file in GIF format.Origin 1980s: acronym from graphic interchange format. Definition of GIF in: The US English dictionary Get more from Oxford Dictionaries Subscribe to remove adverts and access premium resources Find out more More on GIF Nearby words gie Gielgud, Sir John GIF gift gift aid See also GIF in New Oxford Dictionary for Writers & Editors Files and file types, at Digital artwork and graphics files in New Hart's Rules Result list for GIF More words in this category AFK computer dating concatenate cross-platform demo Word of the day crotchety Pronunciation: ˈkrɒtʃɪtiadjectiveirritable See full definition