- past tense form of undertake.
undertook
Americanverb
verb
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Concern stems from recent reports that Anthropic blocked use of AI tools to develop bioweapons and that swarms of AI bots autonomously undertook massive hacking operations.
From Salon ● Sep. 14, 2026
During Kaur’s tenure as chief financial officer, CEO Elhedery undertook a sweeping overhaul of the business.
From The Wall Street Journal ● Sep. 10, 2026
"We undertook this study to determine if vanillin, a flavor chemical often used in e-cigarettes at high concentrations, could adversely affect the development of young embryos in humans."
From Science Daily ● Aug. 28, 2026
Bonehill-Pine said he reformed his previous views when he learned of the murder of MP Jo Cox, and subsequently undertook a de-radicalisation programme.
From BBC ● Aug. 5, 2026
And he handed it to Tock, who undertook at once to carry one drop at a time from well to well.
From "The Phantom Tollbooth" by Norton Juster
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
