mat·zo /ˈmɑtsə ||(ˌ)so/
  matz·o, matz·oh n.; pl. E. matzos or matzohs; Hebr. matzoth   A cake of unleavened bread eaten by the Jews at the feast of the Passover.
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  matzo
       n : brittle flat bread eaten at Passover [syn: matzoh, matzah,
            unleavened bread]
       [also: matzoth (pl)]