Semiotics

Semiotics i understand to be a study of signs, symbols and signification rather than what has meaning, its a study of how to create meaning, using sign, signifier,denotation and connotation. together they makes up semiotics. With using signs, simply anything can be used to communicate, to tell a truth or a lie. signs where the relation combined with signifier and signified.
Definition of denotation in the dictionary is:

"the explicit or direct meaning or set of meanings of a word or expression, as distinguished from theideas or meanings associated with it or suggested by it; the association or set of associations that aword usually elicits for most speakers of a language, as distinguished from those elicited for anyindividual speaker because of personal experience. Compare connotation.a word that names or signifies something specific: “Wind” is the denotation for air in natural motion.“Poodle” is the denotation for a certain breed of dog.the act or fact of denoting; indication.something that denotes; mark; symbol."

(http://dictionary.reference.com/browse/denotation)

The basic meaning of a sign such as the word 'LIGHT' signifies brightness and something productive.

 where as connotation is the secondary meaning, signs which could be used as signifiers for a different meaning, such as the word 'LIGHT' signifies Purity.

Semiotics In An “Absolut” 300 × 300