Goodman’s view on the matter had already appeared in print in 1949 under the title “On Likeness of Meaning”. In this paper Goodman proposes a purely extensional analysis of meaning, the upshot of which is that no two different expressions in a language are synonymous. He discusses several objections to theories of meaning that rely on intensional entities (such as, for example, Fregean senses) to explicate the notion of synonymy in non-circular ways, such that the question of whether two terms are “synonymous” is comprehensible as well as scrutable. Goodman eventually rejects intensional approaches and opts for an extensional theory for sameness of meaning. According to such an extensional theory, two expressions have the same meaning if and only if they have the same extension. This criterion is certainly intelligible, but also scrutable; we can