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THE IDIOM COLLECTION LEARN & PRACTISE

Take the plunge

Understand the meaning. See it in context. Make it yours.

01 / UNDERSTAND

Meaning in plain English

To decide to do something important or challenging, often after hesitating or considering it for some time.

02 / SEE IT IN CONTEXT

The expression in a sentence

  1. After months of thinking about it, I decided to take the plunge and join the choir.

03 / CHECK YOUR UNDERSTANDING

Quick idiom quiz

Try the question without looking back, then write a sentence of your own. You can retry as often as you like.

Can you recall the expression?

Complete the example using the expression from this lesson.

After months of thinking about it, I decided to ________ and join the choir.
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Take the plunge — To decide to do something important or challenging, often after hesitating or considering it for some time.

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Make it yours

Write one sentence using “Take the plunge” about your own life.

Check your sentence

Does your sentence match this meaning?

To decide to do something important or challenging, often after hesitating or considering it for some time.

Compare: After months of thinking about it, I decided to take the plunge and join the choir.

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More ways to understand and use it

When to use it

Use this conversational expression when someone finally commits to a significant step. It often appears in stories about starting a course, joining an activity or making a change.

More examples in context

  • She took the plunge and applied for the advanced workshop.
  • We are ready to take the plunge and organise our first public exhibition.

Usage note

The past form is took the plunge. The expression marks a decision and action after consideration; it does not necessarily mean acting recklessly. A literal dive into water is a different use of plunge.

A short conversation

A: Have you joined the speaking club yet?
B: Yes. I finally took the plunge last week.
A: How did the first session go?

One more practice question

Which action best illustrates taking the plunge?

A. Finally joining a challenging activity after considering it for months.
B. Continuing to postpone a decision without taking any action.

Check your answer

A. The person commits to the step after a period of thought or hesitation.

Related lessons

Meaning and usage checked against Cambridge Dictionary. Explanations, examples and conversation are original.

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