way station vs train depot

way station and train depot both are nouns.

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

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

way station: a small railway station between the principal stations or a station where the train stops only on a signal
train depot: a terminal/node where trains load or unload passengers or goods

Other hypernyms of way station include railroad station, railroad terminal, railway station, train station.

way station (noun)	train depot (noun)
a small railway station between the principal stations or a station where the train stops only on a signal	a terminal/node where trains load or unload passengers or goods
a stopping place on a journey