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Definition jump in in British English

jump in phrasal verb

[intransitive] phrasal verb
1

to become involved in a situation very quickly

Example

Onlookers jumped in to break up the fight.

Synonyms and related words
1.1

to become involved in something without thinking carefully about it

Synonyms and related words
1.2

to become involved in a very difficult situation

Synonyms and related words
2

to interrupt someone while they are talking

Synonyms and related words
Definition jump in in British English