 On this empiricist account, conceptual analysis plays a modest metaphysical role. Conceptual analysis captures apriori entailment relations among your ideas; but it cannot tell you whether there are any objects, kinds, or properties that satisfy your current reference-fixing assumptions (Jackson 1998a, 42–4). Moreover, the meaning you currently associate with a term may be pragmatically deficient: e.g., it may not be determinate enough to settle certain hard cases or it may not allow you to draw useful distinctions in your actual environment. In such cases, you would have good pragmatic reasons to change the meaning of your term (Jackson 1998a, 44–6, 53–4). What the empiricist denies is that changing your current criteria for applying a term can ever get you closer to the truth about what you meant all along.