American Dictionary

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Definition plunge in in American English

plunge in phrasal verb

phrasal verb
1

to suddenly start doing something with energy and enthusiasm, but sometimes without thinking about it first

Example

Your help will not always be appreciated at first, but plunge in anyway.

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2

to quickly push something a long way into something else

Example

Luke plunged the needle in deep.

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3

to quickly jump or dive into water

Synonyms and related words
Definition plunge in in American English