Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Drinkdecafde‧caf, decaff /ˈdiːkæf/ noun [uncountable] informal DFDdecaffeinated coffeeExamples from the Corpusdecaf• Other new words which might sound familiar include sloane ranger, Rambo, kissogram and decaf. ldoceonline.com