Aaland islands vs Ahvenanmaa

Aaland islands and Ahvenanmaa both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aaland islands	Yes	No	No	No
Ahvenanmaa	Yes	No	No	No

As nouns, Aaland islands and Ahvenanmaa are synonyms defined as:

Aaland islands and Ahvenanmaa: an archipelago of some 6,000 islands in the Gulf of Bothnia under Finnish control

Other synonyms of Aaland islands include Aland islands.

Aaland islands (noun)	Ahvenanmaa (noun)
an archipelago of some 6,000 islands in the Gulf of Bothnia under Finnish control	an archipelago of some 6,000 islands in the Gulf of Bothnia under Finnish control