Hamentaschen = Cookies traditionally made for Purim that resemble a 3-cornered hat.

Purim = Jewish holiday commemorating a time in ancient Persia when Jewish people were saved from a plot to annihilate all the Jews.

Pesach = Passover. Jewish holiday commemorating exodus from Egypt.

Rosh Hashanah = Jewish new year.

Shabbat = Jewish Sabbath. Starts at sunset Friday night through nightfall Saturday night. Every week.

Shabbos = alternate pronunciation of Shabbat.

Shalach Manos = Gifts of food given on Purim. Also called Mishloach Manot.

Shavuos = alternate pronunciation of Shavuot.

Shavuot = Jewish holiday celebrating the receiving of the Torah at Mt. Sinai.