"ternary" in the noun sense
1. three, 3, III, trio, threesome, tierce, leash, troika, triad, trine, trinity, ternary, ternion, triplet, tercet, terzetto, trey, deuce-ace
the cardinal number that is the sum of one and one and one
"ternary" in the adjective sense
1. ternary, treble, triple, triplex
having three units or components or elements
"a ternary operation"
"a treble row of red beads"
"overcrowding made triple sessions necessary"
"triple time has three beats per measure"
"triplex windows"
Source: WordNet® (An amazing lexical database of English)
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