Illustrate (verb)

1. 1. provide (a text or statement) with visual material that serves to clarify or enliven it.
2. 2. serve as an example or explanation of something.
3. 3. adorn with decorative drawings or designs.

Origin:

Late middle english: from latin illustrat- "made bright, illuminated", from the verb illustrare, from in- "into" + lustrare "make bright" (from lux, luci "ligh.t")

Examples:

1. The teacher illustrated the lesson with diagrams.
2. This map illustrates the route.
3. The novel was illustrated by a famous artist.
4. The lecture was illustrated with slides.
5. The book was illustrated with photographs.