English Reference

Word

undertaking

Phoneticsun·der·tak·ing

/ˈəndɝˌteɪkɪŋ/

Definitions

01a major task or project

B2

n. a job, task, or piece of work that is often difficult or takes a long time.

n. a task, project, or enterprise, typically one that is substantial or requires significant effort.

“Building a new house is a massive undertaking that requires careful planning.”

“The restoration of the cathedral proved to be a monumental undertaking, involving hundreds of specialized craftsmen and years of meticulous labor.”

02a formal promise

C1 · Law

n. a formal promise or agreement to do something.

n. a formal pledge or guarantee to perform a specific action or fulfill a requirement.

“The company gave a written undertaking that they would fix the problem.”

“The defendant provided a formal undertaking to the court, promising to refrain from contacting the witnesses until the trial concluded.”

Formal

Usage

Often followed by a 'that' clause or an infinitive.

03funeral business

C2

n. the business of managing funerals and preparing bodies for burial.

n. the professional management of funeral arrangements and the disposal of the dead.

“The family has been in the business of undertaking for three generations.”

“He decided to pursue a career in undertaking, viewing the service as a vital support for grieving families in the community.”

Formal

Synonyms

funeral directing

Real-World Examples

“Choreographed by Piet Van Dycke, the show then knuckles down to more serious tricks, with the performers undertaking a series of costume changes that are so subtle you don’t notice them at first.”
The Guardian · 18 Aug 2026
“Mexican authorities and researchers are working to conserve the vaquita in its native habitat before undertaking any invasive efforts to breed the animals, clone them or even move them into captivity.”
Smithsonian Magazine · 14 Aug 2026

Etymology

By surface analysis, undertake + -ing.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

This entry

Level
C1 · Advanced
Frequency
Frequent
Updated

Scan code

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English Reference