Dominica vs Commonwealth of Dominica

Dominica and Commonwealth of Dominica both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dominica	Yes	No	No	No
Commonwealth of Dominica	Yes	No	No	No

As nouns, Dominica and Commonwealth of Dominica are synonyms defined as:

Dominica and Commonwealth of Dominica: a country on the island of Dominica

Dominica (noun)	Commonwealth of Dominica (noun)
a country on the island of Dominica	a country on the island of Dominica
a volcanic island in the Windward Islands that was once a stronghold of the Carib Indians