Classical rhetoricians devoted enormous attention to categorizing the devices of style; the specific patterns of language that produce distinctive effects beyond the merely literal and correct. The most fundamental distinction in this taxonomy is between figures (or schemes) and tropes. Both are "rhetorical devices," and both are sometimes loosely called "figures of speech," but they operate through fundamentally different mechanisms, and understanding the difference illuminates how language works.
Figures: The Architecture of Repetition and Pattern
Figures work by creating sonic, rhythmic, or structural patterns in the arrangement of words; patterns that the ear and mind register even when (often because) they depart from the natural order of ordinary speech. The meaning of the words remains literal; the effect is produced by their organization.
The major categories:
Tropes: The Turn of Meaning
Tropes work by using language non-literally; by turning (Greek tropos: turn) the meaning of a word away from its standard denotation toward a related or associated meaning that illuminates through comparison, condensation, or substitution. The figure says what it means in an unusual structure; the trope says something other than what it literally means.
Why the Distinction Matters
The figure/trope distinction matters for rhetorical analysis because the two types of device work through different mechanisms and create different effects. Figures primarily create rhythmic, sonic, and structural effects; they work on the ear and the sense of pattern. Tropes primarily create cognitive and imaginative effects; they work by redirecting the mind's interpretive activity toward unexpected connections.
When analyzing a piece of communication, identifying whether a device is a figure or a trope helps explain what kind of effect it is producing. Anaphora creates accumulated emotional intensity through repetition. Metaphor creates insight through structural comparison. Both are "rhetorical devices," but they are doing fundamentally different things; and a thorough rhetorical analysis treats them differently.
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