Nederland vs Holland

Nederland and Holland both are nouns.

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

As nouns, Nederland and Holland are synonyms defined as:

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

Other synonyms of Nederland include Netherlands, The Netherlands.

Nederland (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