Numerical data, an estimate or a factual claim used to support or develop a reason.

The intellectually disciplined process of actively and skillfully conceptualizing, applying, analyzing, synthesizing, and/or evaluating information gathered from, or generated by, observation, experience, reflection, reasoning, or communication, as a guide to belief and action.

Something used as evidence because it is characteristic of the same kind of things or because it can serve to illustrate a principle.