Metonymy and metaphor are assumed to form a continuum with fuzzy cases between these categories. The paper focuses on the intermediate notion of metonymy-based metaphor. Four sources which may give rise to metonymy-based metaphor are distinguished: (i) a common experiential basis of source and target domain, due to the relationships of correlation and complementarity, (ii) conversational implicature, illustrated in the areas of implicated result and causation, implicated possession, and implicated purpose and activity, (iii) the taxonomic structure of categories, (iv) cultural models, exemplified by way of our folk understanding of physical force, communication and language, and emotion and physiological reaction. (Günter Radden)