[n] one of three equal parts of a divisible whole; "it contains approximately a third of the minimum daily requirement"
[n] the cardinal number that is the sum of one and one and one
[n] the third canonical hour; about 9 a.m.
Synonyms
3, deuce-ace, III, leash, one-third, terce, tercet, ternary, ternion, terzetto, third, three, threesome, trey, triad, trine, trinity, trio, triplet, troika