[n] a visual representation (a picture or diagram) that is used make some subject more pleasing or easier to understand
[n] a single item of information that is representative of a type; "this patient provides a typical example of the syndrome"; "there is a good example on page 10"
[n] showing by example
[n] artwork that helps make something clear or attractive
apology, art, artwork, caption, case in point, chart, demo, demonstration, exception, excuse, fig, figure, graph, graphical record, graphics, information, legend, nontextual matter, pictorial matter, picture, plate, precedent, quintessence, representation, sample, specimen
\Il`lus*tra"tion\, n. [L. illustratio: cf. F. illustration.]
1. The act of illustrating; the act of making clear and distinct; education; also, the state of being illustrated, or of being made clear and distinct.
2. That which illustrates; a comparison or example intended to make clear or apprehensible, or to remove obscurity.
3. A picture designed to decorate a volume or elucidate a literary work.