"This book investigates the phenomenon of semantic under-determinacy by exploring how under-determinacy can be explained, and how communication is possible despite it. Belleri argues that the comprehension of utterances of semantically under-determined sentences is made possible by our mastery of certain conceptual constraints, as well as the information we gain from the context which does not necessarily concern the intentions and beliefs of the speaker. Combining a fresh, previously unexplored view of the subject with a detailed overview of the past and ongoing philosophical discussion on the matter, the book asserts that semantic under-determinacy comes from nothing but a lack of words or under-articulation"--