coach station vs bus depot

coach station and bus depot both are nouns.

Word	Noun	Adjective	Verb	Adverb
coach station	Yes	No	No	No
bus depot	Yes	No	No	No

As nouns, coach station and bus depot are synonyms defined as:

Other synonyms of coach station include bus station, bus terminal.

coach station (noun)	bus depot (noun)
a terminal that serves bus passengers	a terminal that serves bus passengers