1. makes something more lively, exciting, or interesting
Usage: informal; usually used with ‘up’
2. plays jazz music

Examples

• She jazzes up her presentations with colorful graphics.
• The decorator jazzes up plain rooms with bold artwork.
• He jazzes up his cooking with exotic spices.
• The band jazzes classic songs with new arrangements.
• The musician jazzes on his saxophone every evening.
• She jazzes up her outfit with bright accessories.