Theory and study of signs and symbols dealing especially with their function in languages, including syntax, semantics, and pragmatics.

Source: Art & Architecture Thesaurus

http://vocab.getty.edu/page/aat/300054254

Teoria e estudo de signos e símbolos lidando especialmente com sua função em linguagens, incluindo sintaxe, semântica e pragmática.

Fonte: AAT

http://vocab.getty.edu/page/aat/300054254