sandbox

American  

[sand-boks] / ˈsændˌbɒks /

noun

sandboxes plural

1. a box or receptacle for holding sand, especially one large enough for children to play in.

2. Computers. an environment in which software developers or editors can create and test new content, separate from other content in the project (often used attributively).

   sandbox web design;

   New features are tested and critiqued in the demo sandbox.

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adjective

1. Digital Technology. noting or relating to a genre of video game with a nonlinear structure that allows players to roam freely.

sandbox British  

/ ˈsændˌbɒks /

noun

1. a container on a railway locomotive from which sand is released onto the rails to assist the traction

2. a box with sand shaped for moulding metal

3. a container of sand for small children to play in

4. computing a protected environment in which an untrusted program may be run without affecting other parts of the system

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Other Word Forms

Noun Inflected Forms

• sandboxes
  plural

Etymology

Origin of sandbox

First recorded in 1565–75; sand + box ¹

Explanation

Many playgrounds have a sandbox, an area that's full of fine, soft sand for kids to play in. For many children, all they need is a sandbox, a shovel, and a pail to be perfectly happy. In North America, this common plaything is called a sandbox, while in the U.K. you'll hear it called a sandpit. It's not unusual for people with yards and young children to have a sandbox at home, and they're also found on school playgrounds and in public parks. Kids in sandboxes will dig holes, fill toy trucks with sand, mix the sand with water, and (occasionally) throw sand at each other.

Example Sentences

The game's sandbox gameplay, where players can explore vast open worlds with considerable freedom - sometimes controversially - has seen it be continuously lauded as the ultimate expression for what the interactive medium can do.

From BBC • Jun. 19, 2026

An onstage sandbox is more than just another visual accompaniment to her talk.

From Los Angeles Times • Jun. 12, 2026

Throughout his career, Soderbergh has sought out new technology and filmmaking techniques to play around with, lending his work an exciting sandbox quality where anything goes.

From Salon • Apr. 17, 2026

You have to provide them with a sandbox to play with it.

From The Wall Street Journal • Dec. 29, 2025

Boo hops to the sandbox, sits down, and starts shoveling fast and furious.

From "The Tenth Mistake of Hank Hooperman" by Gennifer Choldenko