1 A2 informal
To enter a vehicle or body of water by jumping.
"Jump in the car — we're going to be late!"
jump in
A2 informal intransitive
To enter a conversation, activity, or situation suddenly and without much hesitation.
In plain English
To suddenly join in or start something without waiting.
What does "jump in" mean?
3 meanings, ordered from most common to least. Color-coded by CEFR level.
2 B1 idiomatic informal
To enter a conversation or activity suddenly, without waiting to be asked.
"Please jump in if you have any questions while I'm presenting."
3 B1 idiomatic informal
To become involved in a difficult situation quickly and without hesitation.
"When the argument got out of hand, the manager jumped in to calm everyone down."
Literal vs figurative
Words literally mean
To leap into something — transparent.
Actually means
To suddenly join in or start something without waiting.
Usage tip
Very common in both literal (jumping into water) and figurative senses. The figurative sense is widely used in meetings, discussions, and project work. Teachers often say 'feel free to jump in' to encourage students. Also used literally with vehicles ('jump in the car').
Words that pair with "jump in"
Natural word combinations native speakers use most often.
conversation pool car meeting discussion debate anytime
How to conjugate "jump in"
The five tense forms you'll use most often.
Base
jump in
I/you/we/they
3rd person
jumps in
he/she/it
Past simple
jumped in
yesterday
Past participle
jumped in
have + pp
-ing form
jumping in
continuous
Hear "jump in" in the wild
Listen to native speakers using "jump in" in real YouTube videos — click a clip to watch it on Looplines.
Keep exploring
Jump to every phrasal verb built on the same verb, particle, or level.