A trader who sells goods in a shop, or by retail, in distinction from one who sells by wholesale, or sells door to door.

plural of shopkeeper

The business of operating a shop

(informal) A shopkeeper.

plural of shopkeep

(law) A law in the United States, according to which a shopkeeper can detain a suspected shoplifter on store property for a reasonable amount of time, as long as the shopkeeper has cause to believe that the detainee actually committed, or attempted to commit, theft of store property.