Learner's definition of SAUCE
1 : a thick liquid that is eaten with or on food to add flavor to it
a delicious spaghetti/meat sauce
She tried several sauces before she found one she liked.
chicken in/with a cream sauce
Cover the strawberries with the chocolate sauce.
2 [count] : boiled or canned fruit 3 [singular], chiefly British, informal + old-fashioned : rude or impolite language or actions 4 the sauce US slang : alcoholic drinks : liquor
what's sauce for the goose is sauce for the gander