The Commens Dictionary
Quote from ‘New Elements (Kaina stoiceia)’
If a sign, A, only denotes real objects that are a part or the whole of the objects denoted by another sign, B, then A is said to be a subject (or substantial part) of B.
‘Subject’ (pub. 12.11.15-16:56). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from http://www.commens.org/dictionary/entry/quote-new-elements-kaina-stoiceia-29.