Noun Definitiontierce1.Definition: one of three equal parts of a divisible wholeRelated Noun(s):thirdCategory: General2.Definition: the cardinal number that is the sum of one and one and oneRelated Noun(s):iii, leash, tercet, ternary, ternion, terzetto, three, trey, triad, trine, trinity, trio, triplet, troikaCategory: General3.Definition: the third canonical hour; about 9 a.m.Related Noun(s):terceCategory: General