Persia vs empire

Persia and empire both are nouns.

Word	Noun	Adjective	Verb	Adverb
Persia	Yes	No	No	No
empire	Yes	No	No	No

Persia (noun)	empire (noun)
a theocratic Islamic republic in the Middle East in western Asia; Iran was the core of the ancient empire that was known as Persia until 1935; rich in oil	a monarchy with an emperor as head of state
an empire in southern Asia created by Cyrus the Great in the 6th century BC and destroyed by Alexander the Great in the 4th century BC	a group of countries under a single authority
	a group of diverse companies under common ownership and run as a single organization
	the domain ruled by an emperor or empress; the region over which imperial dominion is exercised