1. a shallow enclosed display case with a glass front

1. to practice boxing by fighting against an imaginary opponent

Examples

• She displayed her military medals in a shadowbox on the wall.
• The museum used a shadowbox to showcase the ancient artifacts.
• His grandmother’s jewelry was preserved in an elegant shadowbox.
• The boxer spent an hour shadowboxing in front of the mirror.
• He shadowboxed to warm up before the real match.
• The trainer taught her to shadowbox to improve her technique.