English definition of “patch”
/pætʃ/ noun [C]
AREA › a small area that is different from the area around it: a bald patch. There are icy patches on the road.
MATERIAL › a piece of material that you use to cover a hole in your clothes or in other material: He had leather patches sewn on the elbows of his jacket.
EYE › a small piece of material used to cover an injured eye
LAND › a small area of land used for a particular purpose: a cabbage/vegetable patch
a bad/rough, etc patch › a difficult time: I think their marriage is going through a bad patch.