bus station vs depot

bus station and depot both are nouns.

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

As nouns, depot is a hypernym of bus station; that is, depot is a word with a broader meaning than bus station:

Other hypernyms of bus station include terminal, terminus.

bus station (noun)	depot (noun)
a terminal that serves bus passengers	station where transport vehicles load or unload passengers or goods
	a depository for goods