train station vs train depot

train station and train depot both are nouns.

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

As nouns, train station and train depot are synonyms defined as:

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

Other synonyms of train station include railroad station, railroad terminal, railway station.

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