Ellice Islands vs Tuvalu

Ellice Islands and Tuvalu both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ellice Islands	Yes	No	No	No
Tuvalu	Yes	No	No	No

As nouns, Ellice Islands and Tuvalu are synonyms defined as:

Ellice Islands and Tuvalu: a group of coral islands in Micronesia to the southwest of Hawaii

Ellice Islands (noun)	Tuvalu (noun)
a group of coral islands in Micronesia to the southwest of Hawaii	a small island republic on the Tuvalu islands; formerly part of the British colony of Gilbert and Ellice Islands until it withdrew in 1975 and became independent of the United Kingdom in 1978
	a group of coral islands in Micronesia to the southwest of Hawaii