carving vs glyptic art

carving and glyptic art both are nouns.

Word	Noun	Adjective	Verb	Adverb
carving	Yes	No	No	No
glyptic art	Yes	No	No	No

As nouns, glyptic art is a hyponym of carving; that is, glyptic art is a word with a more specific, narrower meaning than carving:

carving: a sculpture created by removing material (as wood or ivory or stone) in order to create a desired shape
glyptic art: carvings or engravings (especially on precious stones)

Other hyponyms of carving include cinquefoil, glyptography, scrimshaw, vermiculation, woodcarving.

carving (noun)	glyptic art (noun)
creating figures or designs in three dimensions	carvings or engravings (especially on precious stones)
removing parts from hard material to create a desired pattern or shape
a sculpture created by removing material (as wood or ivory or stone) in order to create a desired shape