undertaking

noun

un·​der·​tak·​ing ˈən-dər-ˌtā-kiŋ How to pronounce undertaking (audio)
ˌən-dər-ˈtā-;
 sense 1b is  only ˈən-dər-ˌtā-
1
a
: the act of one who undertakes or engages in a project or business
b
: the business of an undertaker
2
: something undertaken : enterprise
3

Examples of undertaking in a Sentence

The restoration of the old theater is a huge undertaking. He advised us against such a risky undertaking.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Implementing these reforms will be a major undertaking, but if states rise to the ... Jennifer Butler, National Review, 23 July 2025 Market structure legislation, on the other hand, is seen as a much more complex undertaking. Owen Tedford, Forbes.com, 23 July 2025 The search for the best hotels in London is a formidable undertaking. Vogue, 23 July 2025 The foundation’s next major undertaking is underway in Guatemala. Matthew Kayser, USA Today, 22 July 2025 See All Example Sentences for undertaking

Word History

First Known Use

14th century, in the meaning defined at sense 1a

Time Traveler
The first known use of undertaking was in the 14th century

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Cite this Entry

“Undertaking.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undertaking. Accessed 29 Jul. 2025.

Kids Definition

undertaking

noun
un·​der·​tak·​ing ˈən-dər-ˌtā-kiŋ How to pronounce undertaking (audio)
ˌən-dər-ˈtā-kiŋ;
 sense 1b is  ˈən-dər-ˌtā-kiŋ,
 only 
1
a
: the act of a person who undertakes something
b
: the business of an undertaker
2
: something undertaken

Legal Definition

undertaking

noun
un·​der·​tak·​ing
1
: a promise or pledge especially required by law
2
: something (as cash or a written promise) deposited or given as security especially in a court

Note: Undertakings are often required of one party during property actions (as for attachment) in order to compensate the other party should the court's action (as in attaching the property) be found unjustified later.

More from Merriam-Webster on undertaking

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