beitzah: "roasted egg," in the Seder meal represents the burnt offerings brought to the Temple during festivals in ancient days; it also symbolizes the cycle of life, the endurance of God’s people and the hope for a future.
zeroah: "arm," the roasted shank bone of a lamb that is symbolic of the Passover lamb, both the lambs that were killed in Egypt for the first Passover, but also for the sacrificial lambs offered in the Temple to commemorate Passover.
matzah; plural, matzot: "unleavened bread," dough made without yeast that bakes into a thin flat bread. Biblical tradition says that the Hebrews had to leave Egypt so quickly that they did not have time to let the bread rise so they made the dough without yeast or leaven. It is possible that they took the dough with them in kneading bowls and sun baked the bread on the hot rocks of the desert. There are various ways to transliterate this term. Today, Matzah is represented by flat cracker-like wafers. In the Passover Seder three Matzot are used, two representing the two loaves of bread that were placed in the Jerusalem Temple on festival days, plus an additional one for Passover.