definition of
trinity

[1] #1 trinity n. [three, 3, III, trio, threesome, tierce, leash, troika, triad, trine, ternary, ternion, triplet, tercet, terzetto, trey, deuce-ace] the cardinal number that is the sum of one and one and one. wn

[2] #2 trinity n. [Trinity, Holy Trinity, Blessed Trinity, Sacred Trinity] the union of the Father and Son and Holy Ghost in one Godhead. wn

[3] #3 trinity n. [trio, threesome, triad] three people considered as a unit. wn