weatherboarding vs siding

weatherboarding and siding both are nouns.

Word	Noun	Adjective	Verb	Adverb
weatherboarding	Yes	No	No	No
siding	Yes	No	No	No

As nouns, siding is a hypernym of weatherboarding; that is, siding is a word with a broader meaning than weatherboarding:

weatherboarding: a long thin board with one edge thicker than the other; used as siding by lapping one board over the board below
siding: material applied to the outside of a building to make it weatherproof

weatherboarding (noun)	siding (noun)
a long thin board with one edge thicker than the other; used as siding by lapping one board over the board below	a short stretch of railroad track used to store rolling stock or enable trains on the same line to pass
	material applied to the outside of a building to make it weatherproof