Abyssinia vs Federal Democratic Republic of Ethiopia

Abyssinia and Federal Democratic Republic of Ethiopia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Abyssinia	Yes	No	No	No
Federal Democratic Republic of Ethiopia	Yes	No	No	No

As nouns, Abyssinia and Federal Democratic Republic of Ethiopia are synonyms defined as:

Abyssinia and Federal Democratic Republic of Ethiopia: Ethiopia is a republic in northeastern Africa on the Red Sea; formerly called Abyssinia

Other synonyms of Abyssinia include Ethiopia, Yaltopya.

Abyssinia (noun)	Federal Democratic Republic of Ethiopia (noun)
Ethiopia is a republic in northeastern Africa on the Red Sea; formerly called Abyssinia	Ethiopia is a republic in northeastern Africa on the Red Sea; formerly called Abyssinia