ABSTRACT In Book III of the Rhetoric, Aristotle focuses at length on the effect of lexical energeia. Scholarship on energeia in this passage almost always associates it with with analysis of enargeia in later texts. However, it is not clear that these two are used as equivalents in Aristotle. Here I survey Aristotle’s conceptions of energeia across the corpus in order to understand Aristotle’s use of energeia in the Rhetoric more precisely. I argue that Aristotle’s model of energeia has a consistent fundamental meaning, even as it crosses many topoi, and that Aristotle’s rhetorical energeia cannot be conflated with enargeia.