|Origin:||, past participle of illustrare, from lustrare 'to make pure or bright'|
to make the meaning of something clearer by giving examples:
Let me give an example to illustrate the point.
She illustrated her discussion with diagrams.
to be an example which shows that something is true or that a fact exists
This dispute illustrates that the regime is deeply divided.
The following examples illustrate how this operates in practice.
This illustrates a fundamental weakness in the system.
to put pictures in a book, article etc:
Over a hundred diagrams, tables and pictures illustrate the book.