Many words carry multiple distinct but related senses. For example, a producer’s name (e.g., Picasso) can be metonymically extended to label products Picasso’s paintings) rarely refer other associated items paintbrushes). We test whether item-based linguistic experience is necessary for children’s acquisition of semantic generalizations. In Experiment 1, we present 4- 5-year-olds, 8- 9-year-old...