railway locomotive vs locomotive

railway locomotive and locomotive both are nouns.

Word	Noun	Adjective	Verb	Adverb
railway locomotive	Yes	No	No	No
locomotive	Yes	Yes	No	No

As nouns, railway locomotive and locomotive are synonyms defined as:

railway locomotive and locomotive: a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks

Other synonyms of railway locomotive include engine, locomotive engine.

railway locomotive (noun)	locomotive (noun)
a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks	a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks

railway locomotive (adjective)	locomotive (adjective)
	of or relating to locomotion