bus terminal vs coach station

bus terminal and coach station both are nouns.

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

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

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

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