jump in
US /dʒʌmp ɪn/
UK /dʒʌmp ɪn/
1.
to join an activity or conversation quickly and eagerly
:
•
Everyone was discussing the new policy, so I decided to jump in with my opinion.
•
The kids were playing in the pool, and I couldn't resist the urge to jump in.
2.
to start doing something quickly or enthusiastically
:
•
When the bell rang, the students jumped in to pack their bags.
•
He didn't hesitate to jump in and help when he saw the accident.