country store vs trading post

country store and trading post both are nouns.

Word	Noun	Adjective	Verb	Adverb
country store	Yes	No	No	No
trading post	Yes	No	No	No

As nouns, country store and trading post are synonyms defined as:

country store and trading post: a retail store serving a sparsely populated region; usually stocked with a wide variety of merchandise

Other synonyms of country store include general store.

country store (noun)	trading post (noun)
a retail store serving a sparsely populated region; usually stocked with a wide variety of merchandise	a retail store serving a sparsely populated region; usually stocked with a wide variety of merchandise