depot vs train station

depot and train station both are nouns.

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

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

depot: station where transport vehicles load or unload passengers or goods
train station: a terminal/node where trains load or unload passengers or goods

depot (noun)	train station (noun)
station where transport vehicles load or unload passengers or goods	a terminal/node where trains load or unload passengers or goods
a depository for goods