sconce vs fortress

sconce and fortress both are nouns.

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

As nouns, fortress is a hypernym of sconce; that is, fortress is a word with a broader meaning than sconce:

Other hypernyms of sconce include earthwork, fort.

sconce (noun)	fortress (noun)
a decorative wall bracket for holding candles or other sources of light	a fortified defensive structure
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