The Commens Dictionary
Quote from ‘The Prescott Book’
By a “Sign” is meant any Ens which is determined by a single Object or set of Objects called its Originals, all other than the Sign itself, and in its turn is capable of determining in a Mind something called its Interpretant, and that in such a way that the Mind is thereby mediately determined to some mode of conformity to the Original or Set of Originals. This is particularly intended to define (very imperfectly as yet) a Complete Sign. But a Complete Sign has or may have Parts which partake of the nature of their whole; but often in a truncated fashion.