# sandbox

/ˈsændˌbɑks/ (US) · /sˈændbɒks/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/sandbox
Updated: 2026-07-22

## Definition

a safe place to test new ideas or software without affecting the real world. It can also be a box filled with sand for children to play in.

For teachers: a restricted environment where software can be executed safely without risking damage to the host system. In a broader sense, it refers to a space for open-ended experimentation or play.

## Examples

- The developer tested the new code in a sandbox first.
- Before launching the update to all users, the team ran the script in a sandbox to check for security vulnerabilities.
- The game is designed as a digital sandbox, allowing players to manipulate the environment and create their own objectives rather than following a linear narrative.

## Usage notes

- In computing, it is often used as a modifier before another noun, such as 'sandbox environment' or 'sandbox mode'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.