matzoh

from WordNet (r) 3.0 (2006)

matzoh
    n 1: brittle flat bread eaten at Passover [syn: {matzo},
         {matzoh}, {matzah}, {unleavened bread}]

from The Collaborative International Dictionary of English v.0.48

matzo \matz"o\, matzoh \matz"oh\, n.; pl. E. {matzos} or
   {matzohs}; Hebr. {matzoth} [Heb. matsts[=o]th, pl. of
   matsts[=a]h unleavened.]
   A cake of unleavened bread eaten by the Jews at the feast of
   the Passover.
   [1913 Webster]