Simple Definition of undertaking

from our Learner's Dictionary

undertaking

noun

plural undertakings
1
: an important or difficult task or project
The restoration of the old theater is a huge/major/massive undertaking.
He advised us against such a risky/dangerous undertaking.
a new creative undertaking
2
: the business of an undertaker
a career in undertaking
3
British, formal : a promise or agreement to do or not do something
The newspaper gave an undertaking [=promised] not to disclose his identity.

Cite this Entry

“Undertaking.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/undertaking. Accessed 14 Apr. 2026.

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