Pelew vs Belau

Pelew and Belau both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pelew	Yes	No	No	No
Belau	Yes	No	No	No

As nouns, Pelew and Belau are synonyms defined as:

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

Other synonyms of Pelew include Palau, Palau Islands.

Pelew (noun)	Belau (noun)
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