DuckCorp Dico

Found one definition

1.                 From Japanese-German FreeDict Dictionary ver. 0.2.0:
                   
   
   
                   
                     
   牌 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, パイ /pˈäi/
   (noun (common) (futsuumeishi))
    (counter)
    [mahjong term] pai(m) Mah-Jongg-Stein