railway yard vs parcel

railway yard and parcel both are nouns.

Word	Noun	Adjective	Verb	Adverb
railway yard	Yes	No	No	No
parcel	Yes	No	Yes	No

As nouns, parcel is a hypernym of railway yard; that is, parcel is a word with a broader meaning than railway yard:

railway yard: an area having a network of railway tracks and sidings for storage and maintenance of cars and engines
parcel: an extended area of land

Other hypernyms of railway yard include parcel of land, piece of ground, piece of land, tract.

railway yard (noun)	parcel (noun)
an area having a network of railway tracks and sidings for storage and maintenance of cars and engines	the allotment of some amount by dividing something
	a wrapped container
	a collection of things wrapped or boxed together
	an extended area of land

railway yard (verb)	parcel (verb)
	make into a wrapped container
	cover with strips of canvas
	divide into parts