illustration illustration /ˌɪləˈstreɪʃən/

noun

1. () Artwork that helps make something clear or attractive  ( illustration )
   artwork that helps make something clear or attractive
    The children's book was full of colorful illustration to engage young readers.
   The children's book was full of colorful illustration to engage young readers.
   
   
2. () Showing by example  ( exemplification , illustration )
   showing by example
   
3. () A visual representation (a picture or diagram) that is used make some subject more pleasing or easier to understand  ( illustration )
   a visual representation (a picture or diagram) that is used make some subject more pleasing or easier to understand
    The textbook used an illustration to better explain the complex scientific concept.
   The textbook used an illustration to better explain the complex scientific concept.
   
   
4. () An item of information that is typical of a class or group  ( representative , exemplum , illustration , example , instance )
   an item of information that is typical of a class or group
    This patient provides a typical example of the syndrome
   this patient provides a typical example of the syndrome
    There is an example on page 10
   there is an example on page 10