Karen Lewis is an Assistant Professor of Philosophy at Barnard College, Columbia University. She specializes in philosophy of language, with a particular focus on the interface between semantics (theories of meaning) and pragmatics (theories of language as it is actually used). Her work is informed both by philosophy and linguistics and much of it seeks to explain how a conversational context affects what a speaker communicates, and vice versa. She also enjoys thinking about other issues in philosophy of language, such as what it would take for a machine to have a meaningful conversation, and the interaction between language and power. She is the co-founder and co-organizer of PhLiP (Philosophical Linguistics and Linguistical Philosophy), an annual conference that brings together philosophers and linguists from all over the world. She received her BA in Philosophy from Queen’s University and her PhD in Philosophy from Rutgers University.