Definition of "Eastern" :

adjective: from the east; used especially of winds

"An eastern wind."

adjective: lying in or toward the east

"Eastern cities."

adjective: lying toward or situated in the east

"The eastern end of the island."

adjective: relating to or characteristic of regions of eastern parts of the world

"Eastern Europe."

adjective: of or characteristic of eastern regions of the United States

"The Eastern establishment."