The document provides an introduction to concepts related to communication and meaning, including a basic model of communication involving a speaker, message, signal, channel, receiver, and noise. It discusses language as a complex sign system that allows for infinite expressive capacity through the stable symbolic association of meanings with phonetic or graphic forms. Finally, it introduces some basic notions from semiotics, including the distinction between iconic signs whose forms mirror their meanings and arbitrary signs with no natural analogical correspondence between form and meaning.