Abstract

This chapter reviews epistemically private items (EPI). A highly influential tradition makes the meaning of a word depend on the nature of the 'idea' associated with it, whilst treating ideas as items before the consciousness of speakers and their hearers, hence as strong candidates for epistemic privacy. Michael Dummett has denied that EPI can play any role in the semantics of the public language. For this view he advances a group of three closely related arguments, which we may call respectively the arguments from Communicability, from Acquisition, and from Manifestation. The immediately obvious candidates for EPI‐affected semantics are expressions which purport to describe sensations, and those standing for properties at least plausibly thought of as powers to produce sensations of certain kinds. Grasp of meaning, once any part is denied to EPI, must consist in the capacity for some kind of publicly accessible behavior.