Definitions for jump in
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Kernerman English Learner's Dictionary
jump in(verb)ʤˈʌmp
to start talking while sb else is
Everyone else kept jumping in with their opinions.
jump inʤˈʌmp
to start sth without waiting or thinking first
I like to jump right in and learn as I go.
Wiktionary
jump in(Verb)
To enter something quickly. Usually a mode of transport.
jump in(Verb)
To initiate into a club, usually a gang, with violence.
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