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The Indexical Hypothesis describes how sentences become meaningful through grounding their interpretation in action. We develop support for the hypothesis by examining how people understand innovative denominal verbs, that is, verbs made from nouns and first encountered by participants within the experiment (e.g., to crutch). Experiments 1 and 2 demonstrated that different syntactic constructions provide scenes or goals that influence the meaning created for the innovative verbs. Experiment 3 used reading time to demonstrate that people also consider possible interactions with the objects underlying the verbs (i.e., the affordances of the objects) when creating meaning. Experiment 4 used a property verification procedure to demonstrate that the affordances derived from the objects depend on the situation-specific actions needed to complete the goal specified by the syntactic construction. Thus the evidence …