undertake

verb

un·​der·​take ˌən-dər-ˈtāk How to pronounce undertake (audio)
undertook ˌən-dər-ˈtu̇k How to pronounce undertake (audio) ; undertaken ˌən-dər-ˈtā-kən How to pronounce undertake (audio) ; undertaking
Synonyms of undertakenext

transitive verb

1
: to take upon oneself : set about : attempt
undertake a task
undertake to learn to swim
2
: to put oneself under obligation to perform
also : to accept as a charge or responsibility
the lawyer who undertook the case
often followed by to + a verb
He undertook to raise his sister's children.
3
: guarantee, promise
… readily undertook that the letter should be securely conveyed …Sir Walter Scott

intransitive verb

archaic : to give surety or assume responsibility

Examples of undertake in a Sentence

He's undertaking a thorough search. The researchers undertook a series of studies.
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.
Republicans and Democrats across the country have been scrambling to undertake mid-decade redistricting, a practice that was rarely undertaken until this year. Caroline Linton, CBS News, 5 Dec. 2025 His allies praise his tenure as prime minister for the innumerable infrastructural projects undertaken at his orders, the rise in private investments, and crucially, for keeping the country afloat in a burning region. Nabil Salih, Time, 4 Dec. 2025 Goldman has undertaken other efforts in the past to tax the rich, but hasn’t been as vocally forward on the issue as some of his possible Democratic challengers. Ross O'Keefe, The Washington Examiner, 4 Dec. 2025 Kate famously decorated their family's previous royal residences at Adelaide Cottage, Nottingham Cottage, Anmer Hall and Apartment 1A at Kensington Palace — sometimes undertaking large-scale renovations. Meredith Kile, PEOPLE, 3 Dec. 2025 See All Example Sentences for undertake

Word History

First Known Use

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

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

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Cite this Entry

“Undertake.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undertake. Accessed 11 Dec. 2025.

Kids Definition

undertake

verb
un·​der·​take ˌən-dər-ˈtāk How to pronounce undertake (audio)
undertook -ˈtu̇k How to pronounce undertake (audio) ; undertaken -ˈtā-kən How to pronounce undertake (audio) ; undertaking
1
: to take upon oneself as a task : enter upon
undertake a journey
2
: to take on as a duty : agree, contract
undertake to deliver a package

More from Merriam-Webster on undertake

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