Pelew vs Palau

Pelew and Palau both are nouns.

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

As nouns, Pelew and Palau are synonyms defined as:

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

Other synonyms of Pelew include Belau, Palau Islands.

Pelew (noun)	Palau (noun)
a chain of more than 200 islands about 400 miles long in the western central Pacific Ocean	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