1. (noun)illustration artwork that helps make something clear or attractive
2. (noun)exemplification, illustration showing by example
3. (noun)example, illustration, instance, representative an item of information that is typical of a class or group
"this patient provides a typical example of the syndrome"; "there is an example on page 10"
4. (noun)illustration a visual representation (a picture or diagram) that is used make some subject more pleasing or easier to understand