illustration

noun

1. 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. 2

   That which illustrates; a comparison or example intended to make clear or apprehensible, or to remove obscurity.

3. 3

   A picture designed to decorate a volume or elucidate a literary work.

4. 4

   A calculated prevision of insurance premiums and returns (life insurance)