TREY Meaning of TREY in English [trey] n, pl treys [ME treye, treis, fr. MF treie, treis, fr. L tres three] (14c) 1: the side of a die or domino that has three spots 2: a card numbered three or having three main pips Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012