This paper pursues the idea that human and non-human great apes share a common set of directive (imperative) gestures and their meanings. We investigate gestures that are multifunctional, in that they have different effects in different contexts, focusing on non-human ape gestures that communicate “Stop that” in some contexts, and “Move away” in others. What may superficially appear to be lexical ambiguity can be derived from a single abstract lexical entry, “Not X!”, concluded to be a candidate for a universal (...) building block of meaning, shared by human and non-human great apes, reflections of which may also be found in the pragmatic gestures in humans. (shrink)