[1] : The Collaborative International Dictionary of English v.0.48

trey \trey\, n. of. treis three, f. trois, l. tres. see
   three, and cf. tray-trip.
   three, at cards, dice, or dominoes; a card, die, or domino of
   three spots or pips.
   1913 webster

         seven is my chance and thine is cinq and trey.
                                                  --chaucer.
   1913 webster
see also:
three tray-trip 

[2] : WordNet (r) 2.0

trey
     n 1: the cardinal number that is the sum of one and one and one
          syn: three, 3, iii, trio, threesome, tierce,
           leash, troika, triad, trine, trinity, ternary,
           ternion, triplet, tercet, terzetto, deuce-ace
     2: one of four playing cards in a deck having three pips
see also:
three 3 iii trio threesome tierce 
leash troika triad trine trinity 
ternary ternion triplet tercet terzetto 
deuce-ace 

Trey >> T Words
Trey, definition of term: Trey
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