Sukkot, a Hebrew word meaning "booths" or "huts," refers to the Jewish festival of giving thanks for the fall harvest. It also commemorates the 40 years of Jewish wandering in the desert after the giving of the Torah atop Mt. Sinai. Sukkot is celebrated five days after Yom Kippur on the 15th of Tishrei, and is marked by several distinct traditions. One, which takes the commandment to dwell in booths literally, is to erect a sukkah, a small, temporary booth or hut. Sukkot (in this case, the plural of sukkah) are commonly used during the seven-day festival for eating, entertaining and even for sleeping.
Learn more about Sukkot here.