What is the meaning of Jewel_box?

A box for storing jewels.

A usually clear hinged plastic container designed to hold a compact disc or similar optical disc.

A member of the second major generation of professional ballparks, built between 1909 and approximately 1940 and distinguished by a relatively compact layout, the use of steel and reinforced concrete as structural materials rather than wood, and the presence of one or more close-in upper decks of seating supported by pillars extending from the lower deck.

Any of the Chamidae, a family of bivalves.

Source: wiktionary.org