Netherlands vs Holland

Netherlands and Holland both are nouns.

Word	Noun	Adjective	Verb	Adverb
Netherlands	Yes	No	No	No
Holland	Yes	No	No	No

As nouns, Netherlands and Holland are synonyms defined as:

Netherlands and Holland: a constitutional monarchy in western Europe on the North Sea; half the country lies below sea level

Other synonyms of Netherlands include Nederland, The Netherlands.

Netherlands (noun)	Holland (noun)
a constitutional monarchy in western Europe on the North Sea; half the country lies below sea level	a constitutional monarchy in western Europe on the North Sea; half the country lies below sea level