1. pictures, drawings, or diagrams that explain or decorate a text
2. examples used to explain or prove a point
3. the action or process of illustrating something

Examples

• The children’s book contained colorful illustrations on every page.
• The textbook’s illustrations helped students understand complex concepts.
• She provided several illustrations to support her argument.
• The professor used historical illustrations to explain the theory.
• The magazine featured beautiful illustrations by local artists.
• His speech included vivid illustrations of the problem’s impact.
• The manual’s technical illustrations made assembly much easier.