As nouns the difference between showroom and store
is that
showroom is a room in a business set aside for the display of the company's products while
store is a place where items may be accumulated or routinely kept.
As verbs the difference between showroom and store
is that
showroom is to inspect merchandise in a physical store, then purchase the identical product from an online merchant; to use a physical store as a showroom for an online merchant while
store is To keep (something) while not in use, generally in a place meant for that purpose.