trace italienne vs crownwork

trace italienne and crownwork both are nouns.

Word	Noun	Adjective	Verb	Adverb
trace italienne	Yes	No	No	No
crownwork	Yes	No	No	No

trace italienne (noun)	crownwork (noun)
a fortification composed of many projecting triangular bastions (usually from five to eight), specifically designed to cover each other; first seen in the mid-15th century in Italy.	(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
	a type of fortification, like a hornwork, but consisting of a full bastion with the walls on either side ending in half-bastions from which longer flank walls run back towards the main fortress.