aquatint vs engraving

aquatint and engraving both are nouns.

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

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

aquatint: a method of etching that imitates the broad washes of a water color
engraving: making engraved or etched plates and printing designs from them

Other hypernyms of aquatint include etching.

aquatint (noun)	engraving (noun)
a method of etching that imitates the broad washes of a water color	making engraved or etched plates and printing designs from them
an etching made by a process that makes it resemble a water color	a block or plate or other hard surface that has been engraved
	a print made from an engraving

aquatint (verb)	engraving (verb)
etch in aquatint