diet Pronunciation: /ˈdaɪət/Translate diet | into German | into Italian | into Spanish French translation of dietn 1 (normal food) alimentation (f) (of à base de) 2 (slimming food) régime (m) to go on a diet = se mettre au régimediet in other Oxford dictionaries Definition of diet in the British & World English dictionary Definition of diet in the US English dictionary