A use of language that creates a literary effect (but often without regard for literal significance) WordNet 3.0 & Open English WordNet

In rhetoric, a rhetorical device, persuasive device, or stylistic device is a technique that an author or speaker uses to convey to the listener or reader a meaning with the goal of persuading them towards considering a topic from a perspective, using language designed to encourage or provoke an emotional display of a given perspective or action. Wikipedia

A technique used in writing or speaking Wikipedia Disambiguation

Technique that an author or speaker uses with the goal of persuading Wikidata