carving vs cinquefoil

carving and cinquefoil both are nouns.

Word	Noun	Adjective	Verb	Adverb
carving	Yes	No	No	No
cinquefoil	Yes	No	No	No

As nouns, cinquefoil is a hyponym of carving; that is, cinquefoil 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
cinquefoil: an ornamental carving consisting of five arcs arranged in a circle

Other hyponyms of carving include glyptic art, glyptography, scrimshaw, vermiculation, woodcarving.

carving (noun)	cinquefoil (noun)
creating figures or designs in three dimensions	an ornamental carving consisting of five arcs arranged in a circle
removing parts from hard material to create a desired pattern or shape	any of a numerous plants grown for their five-petaled flowers; abundant in temperate regions; alleged to have medicinal properties
a sculpture created by removing material (as wood or ivory or stone) in order to create a desired shape