archipelago vs Zetland

archipelago and Zetland both are nouns.

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

archipelago (noun)	Zetland (noun)
a group of many islands in a large body of water	an archipelago of about 100 islands in the North Atlantic off the north coast of Scotland