sandbox

The Simple English Wikipedia has an article on:

Sandbox

Pronunciation

• (UK) IPA ^(key): /ˈsændbɒks/
• (US) IPA ^(key): /ˈsændbɑks/

• Audio (US)

  (file)

• Hyphenation: sand‧box

Noun

Singular sandbox

Plural sandboxes

1. (countable) A sandbox is a small box filled with sand for children to play in.

   Go play in the sandbox, Billy.

2. (countable) (computing) A sandbox is a place where a computer program can run without affecting other parts of the system.