Tuvalu vs Ellice Islands

Tuvalu and Ellice Islands both are nouns.

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

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

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

Tuvalu (noun)	Ellice Islands (noun)
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
a group of coral islands in Micronesia to the southwest of Hawaii