Semiotics is the study of signs and symbols and their interpretation. A sign is composed of the signifier, which is the form the sign takes, and the signified, which is the concept the sign represents. There is an arbitrary relationship between the signifier and signified. Meaning is constructed through a system of differences between signs rather than being intrinsic to any single sign. A word's denotation is its basic meaning, while its connotation encompasses emotional and cultural associations.