1. lit up with light; brightened
2. decorated with colorful designs or pictures, especially in manuscripts
Usage: art history
3. made clear or easier to understand; enlightened

Examples

• The illuminated sign was visible from blocks away.
• The museum displayed beautiful illuminated medieval manuscripts.
• The street was well illuminated by the new LED lights.
• Her face was illuminated by the glow of the campfire.
• The teacher’s explanation illuminated the difficult concept.
• The illuminated letters in the ancient book were painted with gold.
• The building’s facade was illuminated for the holiday celebration.