Palau vs Palau Islands

Palau and Palau Islands both are nouns.

Word	Noun	Adjective	Verb	Adverb
Palau	Yes	No	No	No
Palau Islands	Yes	No	No	No

As nouns, Palau and Palau Islands are synonyms defined as:

Palau and Palau Islands: a chain of more than 200 islands about 400 miles long in the western central Pacific Ocean

Other synonyms of Palau include Belau, Pelew.

Palau (noun)	Palau Islands (noun)
a republic in the western central Pacific Ocean in association with the United States	a chain of more than 200 islands about 400 miles long in the western central Pacific Ocean
a chain of more than 200 islands about 400 miles long in the western central Pacific Ocean