cell vs dungeon

cell and dungeon both are nouns.

Word	Noun	Adjective	Verb	Adverb
cell	Yes	No	No	No
dungeon	Yes	No	No	No

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

Other hyponyms of cell include bullpen, detention cell, detention centre, cooler, tank, guardroom, hold, keep, sweatbox.

cell (noun)	dungeon (noun)
(biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals	the main tower within the walls of a medieval castle or fortress
a device that delivers an electric current as the result of a chemical reaction	a dark cell (usually underground) where prisoners can be confined
a room where a prisoner is kept
small room in which a monk or nun lives
any small compartment
a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver
a small unit serving as part of or as the nucleus of a larger political movement