A word or phrase that is used to replace another in this way.
The use of a word or phrase to replace another with one that is considered less offensive, blunt or vulgar than the word or phrase which it replaces.
The use of a trope (metaphor or figure of speech).
The interpretation of scripture or other work in order to educe moral or figurative meaning; a treatise of such interpretation.
A recurring motif or metaphor, a trope; an interplay of tropes.