# jump in

> English word · Verb · IPA /d͡ʒʌmp ˈɪn/

## Definitions
1. To enter something quickly, usually a mode of transport.
2. To join in on an activity quickly.
3. To interrupt someone while they are speaking.
4. To initiate into an organization, usually a gang, with violence.
5. To play a card that matches the top card in the discard pile out of turn.
6. Used other than figuratively or idiomatically: see jump, in.
7. To ambush (someone).

## Etymology
For the US slang sense, compare jump (“attack suddenly and violently”).

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