Shadowbox (noun)

1. A type of display case or frame used for displaying three-dimensional objects, especially to create a shadow-like effect.
2. A type of boxing training exercise where two fighters engage in mock boxing without actually making physical contact.

Origin:

The origin of the word 'shadowbox' is uncertain. it may be a combination of the words 'shadow' and 'box'.

Examples:

1. The collector displayed his collection of rare stamps in a series of shadowboxes.
2. The athlete used a shadowbox to practice his footwork and hone his technique.
3. The shadowbox displayed the intricate model ship beautifully.
4. The shadowbox was a great way for the young boxer to work on his moves without getting hurt.
5. The shadowbox was not only functional but also added an interesting decorative touch to the room.