railroad terminal vs train station

railroad terminal and train station both are nouns.

Word	Noun	Adjective	Verb	Adverb
railroad terminal	Yes	No	No	No
train station	Yes	No	No	No

As nouns, railroad terminal and train station are synonyms defined as:

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

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

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