"This study presents an approach to metaphor than systematically takes contextual factors into account. It analyses how metaphors both depend on, and change, the context in which they are uttered, and specifically, how metaphorical interpretation involves the articulation of asserted, implied and presupposed material. It supplements this semantic analysis with a practice-based account of metaphor at the conceptual level, which stresses the role of sociocultural factors in concept formation."--BOOK JACKET.