
1: The expression by means of symbolic fictional figures and actions of truths or generalizations about human existence a writer known for his use of allegory also : an instance of such expression The sculpture is an allegory of love and jealousy.
2 : a symbolic representation
Our world abounds with allegory. We encounter it in stories, movies, songs, paintings—anywhere that symbolism is used. An allegory is a work of written, oral, or visual expression that uses symbolic figures, objects, and actions to convey truths or generalizations about human conduct or experience. The word traces back to the Greek word allēgorein meaning "to speak figuratively."
Allegory : Sculptural representation that uses a human and sometimes animal or hybrid figure (lion, dragon, centaur) to represent an idea or an institution. An action and attributes give indications on the meaning of the work.

Raoul Verlet (1856-1930), Allégorie de la Mécanique, XXe
See liminality,