store vs sales outlet

store and sales outlet both are nouns.

Word	Noun	Adjective	Verb	Adverb
store	Yes	No	Yes	No
sales outlet	Yes	No	No	No

As nouns, sales outlet is a hypernym of store; that is, sales outlet is a word with a broader meaning than store:

Other hypernyms of store include mercantile establishment, outlet, retail store.

store (noun)	sales outlet (noun)
a mercantile establishment for the retail sale of goods or services	a place of business for retailing goods
a depository for goods
an electronic memory device
a supply of something available for future use

store (verb)	sales outlet (verb)
keep or lay aside for future use
find a place for and put away for storage