WordWeb Online

1. Mould consisting of a box with sand shaped to mould metal
    
2. [N. Amer] A plaything consisting of a pile of sand or a box filled with sand for children to play in
   - sandpile [Brit, N. Amer], sandpit [Brit]
    
3. (computing) an isolated environment in which a program can be run or tested, for example to prevent accidental damage to other parts of the system
   "In computer security, a sandbox is a security mechanism for separating running programs. It is often used to execute untested code, or untrusted programs"

1. (computing) put into an isolated environment in which a program can be run or tested without affecting the wider system

Derived forms: sandboxed, sandboxes, sandboxing

Type of: cast, mold [N. Amer], mould [Brit, Cdn], plaything, toy

Encyclopedia: Sandbox