fable vs legend

fable and legend both are nouns.

Word	Noun	Adjective	Verb	Adverb
fable	Yes	No	No	No
legend	Yes	No	No	No

As nouns, fable and legend are synonyms defined as:

fable and legend: a story about mythical or supernatural beings or events

fable (noun)	legend (noun)
a short moral story (often with animal characters)	brief description accompanying an illustration
a story about mythical or supernatural beings or events	a story about mythical or supernatural beings or events
a deliberately false or improbable account