deuce vs 2

deuce and 2 both are nouns.

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

As nouns, deuce and 2 are synonyms defined as:

deuce and 2: the cardinal number that is the sum of one and one or a numeral representing this number

Other synonyms of deuce include II, two.

deuce (noun)	2 (noun)
one of the four playing cards in a deck that have two spots	the cardinal number that is the sum of one and one or a numeral representing this number
a word used in exclamations of confusion
the cardinal number that is the sum of one and one or a numeral representing this number
a tie in tennis or table tennis that requires winning two successive points to win the game

deuce (adjective)	2 (adjective)
	being one more than one