# jack-in-the-box

> English word · Noun

## Definitions
1. Children’s toy consisting of a small box from which a male figure pops out unexpectedly after some turnings of a crank.
2. A small but powerful kind of screw, used by burglars to break open safes.
3. A con-man who deceived tradesmen by substituting empty boxes for others full of money.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/jack-in-the-box