quichePronunciation: /kiːʃ/Translate quiche | into German Definition of quiche noun a baked flan or tart with a savoury filling thickened with eggs, usually eaten cold: I rustled up a few quiches [mass noun]:a slice of quiche [as modifier]:a quiche tinOrigin:French, from Alsatian dialect Küchen; related to German Kuchen 'cake'quiche in other Oxford dictionaries Definition of quiche in the US English dictionary