1. the action of improving or increasing the quality, value, or extent of something
2. a feature or change that improves something

Examples

• The software enhancement improved the program’s performance significantly.
• The new lighting was a major enhancement to the restaurant’s atmosphere.
• Digital enhancement of the old photograph revealed hidden details.
• The enhancement of security measures made the building safer.
• Voice enhancement technology helped clarify the recording.
• The garden enhancement project included new pathways and flowers.
• Memory enhancement techniques can help students study more effectively.