Definition of "Shop" :
noun: a course of instruction in a trade (as carpentry or electricity)
"I built a birdhouse in shop."
noun: a mercantile establishment for the retail sale of goods or services
"He bought it at a shop on Cape Cod."
noun: small workplace where handcrafts or manufacturing are done
verb: give away information about somebody
verb: do one's shopping
"She goes shopping every Friday."
verb: shop around; not necessarily buying
verb: do one's shopping at; do business with; be a customer or client of