Adrianopolis vs Adrianople

Adrianopolis and Adrianople both are nouns.

Word	Noun	Adjective	Verb	Adverb
Adrianopolis	Yes	No	No	No
Adrianople	Yes	No	No	No

As nouns, Adrianopolis and Adrianople are synonyms defined as:

Adrianopolis and Adrianople: a city in northwestern Turkey; a Thracian town that was rebuilt and renamed by the Roman Emperor Hadrian

Other synonyms of Adrianopolis include Edirne.

Adrianopolis (noun)	Adrianople (noun)
a city in northwestern Turkey; a Thracian town that was rebuilt and renamed by the Roman Emperor Hadrian	a city in northwestern Turkey; a Thracian town that was rebuilt and renamed by the Roman Emperor Hadrian