Ahvenanmaa vs archipelago

Ahvenanmaa and archipelago both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ahvenanmaa	Yes	No	No	No
archipelago	Yes	No	No	No

Ahvenanmaa (noun)	archipelago (noun)
an archipelago of some 6,000 islands in the Gulf of Bothnia under Finnish control	a group of many islands in a large body of water