Semioticist

Semiotics (also called semiotic studies) is the study of sign processes (semiosis), which are any activity, conduct, or process that involves signs, where a sign is defined as anything that communicates a meaning that is not the sign itself to the sign's interpreter.Wikipedia, En: Semioticist.
n. ( used with a sing. verb) The theory and study of signs and symbols, especially as elements of language or other systems of communication, and comprising semantics, syntactics, and pragmatics.
--- www.tfd.com/semioticist