Anglesea vs island

Anglesea and island both are nouns.

Word	Noun	Adjective	Verb	Adverb
Anglesea	Yes	No	No	No
island	Yes	No	No	No

Anglesea (noun)	island (noun)
an island to the northwest of Wales	a zone or area resembling an island
	a land mass (smaller than a continent) that is surrounded by water