fairy story vs fib

fairy story and fib both are nouns.

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

As nouns, fib is a hypernym of fairy story; that is, fib is a word with a broader meaning than fairy story:

fairy story: an interesting but highly implausible story; often told as an excuse
fib: a trivial lie

Other hypernyms of fairy story include story, tale, taradiddle, tarradiddle.

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

fairy story (verb)	fib (verb)
	tell a relatively insignificant lie