Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Food, dishgâteaugâ‧teau /ˈɡætəʊ $ ɡæˈtoʊ/ noun (plural gâteaux /-təʊz $ -ˈtoʊz/) [countable, uncountable] British English DFFa large sweet cake, often filled and decorated with cream, fruit, chocolate etc ldoceonline.com