The distinction between a concept and its different conceptions plays a prominent role in debates about constitutional interpretation. Proponents of a dynamic reading of the Constitution-espousing interpretation of constitutional concepts according to their contemporary understandings typically rely on the idea that the Constitution entrenches only the general concepts it deploys, without authoritatively favoring any particular conception of them-specifically, without favoring the particular conception of the relevant concept that the framers of the Constitution may have had in mind. Originalists argue, to the contrary, that fidelity to the Constitution requires an understanding of its provisions according to the particular conception of th...