fantasy world vs fairyland

fantasy world and fairyland both are nouns.

Word	Noun	Adjective	Verb	Adverb
fantasy world	Yes	No	No	No
fairyland	Yes	No	No	No

As nouns, fantasy world and fairyland are synonyms defined as:

fantasy world and fairyland: something existing solely in the imagination (but often mistaken for reality)

Other synonyms of fantasy world include phantasy world.

fantasy world (noun)	fairyland (noun)
something existing solely in the imagination (but often mistaken for reality)	something existing solely in the imagination (but often mistaken for reality)
	the enchanted realm of fairies