Semiotics
Table of Contents
The study of making meanings and representations: intersection of linguistics, philosophy, anthropology and biology. Adhering to its epistemological roots :- one may define it as the formal study of sign and symbols.
On a personal note, I read an informal coverage of the same a couple of years ago (0x2133 - 0x2BC) and that had me hooked. Proceeding with a formal study henceforth towards applications related to Symbolic AI.