plunge in
phrasal verb
plunged in; plunging in; plunges in
Definition of plunge in
1
: to push (something) into something quickly and forcefully
The nurse grabbed his arm and plunged the needle in.
2
: to start doing something with enthusiasm and energy
It was a big project, so we all just had to plunge in and get started.
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“Plunge in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plunge%20in. Accessed 26 May. 2022.
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