Representamen

The Leibnitzio-Wolfians distinguish three acts in the process of representative cognition: — 1° the act of representing a (mediate) object to the mind; 2° the representation, or, to speak more properly, representamen, itself as an (immediate or vicarious) object exhibited to the mind; 3° the act by which the mind is conscious, immediately of the representative object, and, through it, mediately of the remote object represented.

A sign, or representamen, is something which stands to somebody for something in some respect or capacity.