engraving vs dry point

engraving and dry point both are nouns.

Word	Noun	Adjective	Verb	Adverb
engraving	Yes	No	No	No
dry point	Yes	No	No	No

As nouns, dry point is a hyponym of engraving; that is, dry point is a word with a more specific, narrower meaning than engraving:

Other hyponyms of engraving include etching, halftone, line engraving, linecut, steel engraving, wood engraving, woodcut.

engraving (noun)	dry point (noun)
making engraved or etched plates and printing designs from them	a steel needle for engraving without acid on a bare copper plate
a block or plate or other hard surface that has been engraved	a print produced by dry point engraving
a print made from an engraving