deuce-ace vs tierce

deuce-ace and tierce both are nouns.

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

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

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

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

deuce-ace (noun)	tierce (noun)
the cardinal number that is the sum of one and one and one	one of three equal parts of a divisible whole
	the cardinal number that is the sum of one and one and one
	the third canonical hour; about 9 a.m.