What does quiche mean in cooking?

quiche means: A pastry crust is filled with a creamy savory egg custard. This usually contains cheese and seasonings. This dish is usually baked in a fluted, shallow baking dish with straight sides. (in Cooking Dictionary)

What else does quiche mean?

• French is a type of savory open-top pie that uses eggs, cream or milk. One of the most well-known is the Quiche Lorraine in Alsace. It’s made with Gruyere cheese and bacon. (in Cooking Dictionary)
• Rich, unsweetened custard pie that often contains vegetables, cheese or seafood. (in Merlin Dictionary)