Allegory
Part of speech: noun
Definition: The representation of abstract principles by characters or figures. A picture, book, or other form of communication using such representation. A symbolic representation.
Parable
Part of speech: noun
Definition: A short narrative illustrating a lesson (usually religious/moral) by comparison or analogy
Part of speech: adjective
Definition: That can easily be prepared or procured; obtainable.
Example sentence: 'Parable of the Sower' is capital-I Important. Put it on the literary fiction shelf. Put it on the Holy Crap fiction shelf. Put it on every shelf. This is one of the all-time great American novels.