wood engraving vs engraving

wood engraving and engraving both are nouns.

Word	Noun	Adjective	Verb	Adverb
wood engraving	Yes	No	No	No
engraving	Yes	No	No	No

As nouns, engraving is a hypernym of wood engraving; that is, engraving is a word with a broader meaning than wood engraving:

wood engraving: engraving consisting of a block of wood with a design cut into it; used to make prints
engraving: a block or plate or other hard surface that has been engraved

As nouns, engraving is a hypernym of wood engraving; that is, engraving is a word with a broader meaning than wood engraving:

wood engraving (noun)	engraving (noun)
engraving consisting of a block of wood with a design cut into it; used to make prints	making engraved or etched plates and printing designs from them
a print made from a woodcut	a block or plate or other hard surface that has been engraved
	a print made from an engraving