tercet vs deuce-ace

tercet and deuce-ace both are nouns.

Word	Noun	Adjective	Verb	Adverb
tercet	Yes	No	No	No
deuce-ace	Yes	No	No	No

As nouns, tercet and deuce-ace are synonyms defined as:

tercet and deuce-ace: the cardinal number that is the sum of one and one and one

Other synonyms of tercet include 3, III, leash, ternary, ternion, terzetto, three, threesome, tierce, trey, triad, trine, trinity, trio, triplet, troika.

tercet (noun)	deuce-ace (noun)
the cardinal number that is the sum of one and one and one	the cardinal number that is the sum of one and one and one