Original: It may also refer to foods using many layers of dough of thickness less than 1mm, usually with many different ingredients in between, forming savoury pies such as tyropita and spanakopita or sweet pies such as baclava.
Simplified: It may also refer to foods using many thin layers of dough, usually with many different ingredients in between. That way, pies such as tyropita and spanakopita or sweet pies such as baclava are made.