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What is the Meaning of “Undertake”?

Undertake
/ˌʌndərˈteɪk/

To agree to do a job or project and accept responsibility for completing it.

Definition of Undertake

Quick Meaning of Undertake

To agree to do a job or project and accept responsibility for completing it.

Detailed Definition of Undertake

To commit oneself to a task or responsibility; to promise to do something.

How to Pronounce Undertake

IPA: /ˌʌndərˈteɪk/
un der take

Stress pattern: ooO (3-syllable word).

Tip: Stress falls on the second syllable: un-der-TAKE, not UN-der-take.

Watch out: Pronouncing with stress on first syllable: UN-der-take.

Full pronunciation guide for “undertake” →

Origin and Etymology of Undertake

From Old English 'under' + 'take'; meaning evolved from physical action to commitment.

How to Use Undertake in a Sentence

Each example shows “undertake” with a CEFR level so learners can pick examples that match their fluency.

  • “The organization undertakes to protect endangered wildlife.”
    B2 formal
  • “She is undertaking a major research project in biology.”
    B2 academic
  • “The team undertaking this mission has extensive experience.”
    B1 written

Synonyms and Antonyms of Undertake

Common Synonyms for Undertake

Smart Synonyms for Undertake — When to Use Each

commit
For general dedication to a goal or task
pledge
When making a formal promise or vow
assume
For taking on responsibility more passively
begin
For starting an undertaking with specific plans

See all synonyms for “undertake” →

Common Collocations with Undertake

These phrases pair with “undertake” in everyday English:

  • undertake responsibility
  • undertake a project
  • undertake a mission

Common Mistakes When Using Undertake

Even fluent speakers slip up with “undertake”. Here’s how to avoid the most common errors:

✗ Wrong: He undertakes the project yesterday.
✓ Correct: He undertook the project yesterday.
Why: Past tense irregular: 'undertake' → 'undertook', not 'undertakes'.
✗ Wrong: They have undertake the mission.
✓ Correct: They have undertaken the mission.
Why: Past participle is 'undertaken', not 'undertake'.

Other Forms of Undertake

Frequently Asked Questions About Undertake

What is the meaning of "Undertake"?

To agree to do a job or project and accept responsibility for completing it.

How do you pronounce "Undertake"?

The IPA is /ˌʌndərˈteɪk/. Stress falls on the second syllable: un-der-TAKE, not UN-der-take.

What part of speech is "Undertake"?

"Undertake" is a verb at B2 level (Common European Framework).

What are synonyms for "Undertake"?

Common synonyms include commit, pledge, assume.

How do you use "Undertake" in a sentence?

For example: "The organization undertakes to protect endangered wildlife."

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