Middle East vs Republic of Iraq

Middle East and Republic of Iraq both are nouns.

Word	Noun	Adjective	Verb	Adverb
Middle East	Yes	No	No	No
Republic of Iraq	Yes	No	No	No

Middle East (noun)	Republic of Iraq (noun)
the area around the eastern Mediterranean; from Turkey to northern Africa and eastward to Iran; the site of such ancient civilizations as Phoenicia and Babylon and Egypt and the birthplace of Judaism and Christianity and Islam; had continuous economic and political turmoil in the 20th century	a republic in the Middle East in western Asia; the ancient civilization of Mesopotamia was in the area now known as Iraq