Imaginative expressions deviating from literal.

Figurative art, sometimes written as figurativism, describes artwork (particularly paintings and sculptures) that is clearly derived from real object sources and so is, by definition, representational.

Non-literal use of language.

a distinction that exists in all natural languages; it is studied within certain areas of language analysis, in particular stylistics, rhetoric, and semantics.

The "figurative system of human knowledge", sometimes known as the tree of Diderot and d'Alembert, was a tree developed to represent the structure of knowledge itself, produced for the Encyclopédie by Jean le Rond d'Alembert and Denis Diderot.