deuce vs brace

deuce and brace both are nouns.

Word	Noun	Adjective	Verb	Adverb
deuce	Yes	No	No	No
brace	Yes	No	Yes	No

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

deuce: the cardinal number that is the sum of one and one or a numeral representing this number
brace: two items of the same kind

Other hyponyms of deuce include craps, snake eyes, couple, couplet, distich, duad, duet, duo, dyad, pair, span, twain, twosome, yoke.

deuce (noun)	brace (noun)
one of the four playing cards in a deck that have two spots	a structural member used to stiffen a framework
a word used in exclamations of confusion	a carpenter's tool having a crank handle for turning and a socket to hold a bit for boring
the cardinal number that is the sum of one and one or a numeral representing this number	an appliance that corrects dental irregularities
a tie in tennis or table tennis that requires winning two successive points to win the game	a support that steadies or strengthens something else
	elastic straps that hold trousers up
	a rope on a square-rigged ship that is used to swing a yard about and secure it
	either of two punctuation marks ({ or }) used to enclose textual material
	a set of two similar things considered as a unit
	two items of the same kind

deuce (verb)	brace (verb)
	cause to be alert and energetic
	support by bracing
	support or hold steady and make steadfast, with or as if with a brace
	prepare (oneself), often but not necessarily for something unpleasant or difficult