depot vs subway station

depot and subway station both are nouns.

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

As nouns, subway station is a hyponym of depot; that is, subway station is a word with a more specific, narrower meaning than depot:

depot: station where transport vehicles load or unload passengers or goods
subway station: a terminal/node where subways/rapid transit systems load and unload passengers

depot (noun)	subway station (noun)
station where transport vehicles load or unload passengers or goods	a terminal/node where subways/rapid transit systems load and unload passengers
a depository for goods