earthwork vs sconce

earthwork and sconce both are nouns.

Word	Noun	Adjective	Verb	Adverb
earthwork	Yes	No	No	No
sconce	Yes	No	No	No

As nouns, sconce is a hyponym of earthwork; that is, sconce is a word with a more specific, narrower meaning than earthwork:

earthwork (noun)	sconce (noun)
an earthen rampart	a decorative wall bracket for holding candles or other sources of light
	a candle or flaming torch secured in a sconce
	a small fort or earthwork defending a ford, pass, or castle gate
	a shelter or screen providing protection from enemy fire or from the weather