Definitions of East:

• noun:   the countries of Asia
• noun:   the region of the United States lying north of the Ohio River and east of the Mississippi River
• noun:   the cardinal compass point that is at 90 degrees
• adjective:   situated in or facing or moving toward the east
• adverb:   to, toward, or in the east

  Example: "We travelled east for several miles"

• name:  A surname (common: 1 in 20000 families; popularity rank in the U.S.: #2620)