sandbox

1. A children's play area consisting of a box filled with sand. (US) · Her children were playing in the sandbox.
2. A box filled with sand that is shaped to form a mould for metal casting.
3. A container for sand or pounce, used historically before blotting paper.
4. An animal's litter box.
5. A box carried on locomotives, from which sand runs onto the rails in front of the driving wheels, to prevent slipping.
6. An isolated area where a program can be executed with a restricted portion of the resources available. · Running a program in a sandbox can prevent it from doing any damage to the system.
7. A page on a wiki where users are free to experiment without destroying or damaging any legitimate content.
8. The Middle East. (US, slang)

Plural sandboxes