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.
This was a preposterous undertaking, like trying to rank the various pixels of a magic eye poster. Pitchfork, 6 June 2025 CIOs also know which functions are needed for their enterprise, and which price increases may be worth budgeting for. Use of AI and new technology depends on infrastructure as well as service, and updating the technological capacity of a place can be a huge undertaking. Megan Poinski, Forbes.com, 5 June 2025 Van der Ende, who ran his own digital design firm at the time, only had experience decorating his own apartment, which was a far lower stakes, slower undertaking. David Foxley, Architectural Digest, 4 June 2025 Planning for more density is a serious undertaking that, if mishandled, could exacerbate inequalities in our community. Peggy Lemons, Oc Register, 4 June 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

Browse Nearby Words

Cite this Entry

“Undertaking.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undertaking. Accessed 10 Jun. 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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