fairy story vs fairytale

fairy story and fairytale both are nouns.

Word	Noun	Adjective	Verb	Adverb
fairy story	Yes	No	No	No
fairytale	Yes	No	No	No

As nouns, fairy story and fairytale are synonyms defined as:

fairy story and fairytale: a story about fairies; told to amuse children

Other synonyms of fairy story include fairy tale.

As nouns, fairy story and fairytale are synonyms defined as:

fairy story and fairytale: an interesting but highly implausible story; often told as an excuse

Other synonyms of fairy story include cock-and-bull story, fairy tale, song and dance.

fairy story (noun)	fairytale (noun)
a story about fairies; told to amuse children	a story about fairies; told to amuse children
an interesting but highly implausible story; often told as an excuse	an interesting but highly implausible story; often told as an excuse