 A semantic interpretation of the 2D framework takes the 2D framework to specify a semantic value of an expression. Kaplan’s theory of indexicals is a semantic interpretation of the framework, as are Jackson’s and Chalmers’ generalized 2D semantics. Stalnaker calls his own interpretation of the 2D framework a metasemantic one because his 2D matrices reflect general principles for assigning semantic values (horizontal intensions) to expressions on the basis of empirical facts about their use. Stalnaker’s 2D matrices thus reflect metasemantic facts about interpretation, not semantic facts about the meanings of specific expressions.