Promise and Undertake

Promise

Promise verb - To make a solemn declaration of intent.
Usage example: they promised to keep in touch with us after they moved away

Undertake is a synonym for promise in guarantee topic. In some cases you can use "Undertake" instead a verb "Promise", when it comes to topics like agree, give one's word.

Undertake

Undertake verb - Promise to do or accomplish.

Promise is a synonym for undertake in attempt topic. You can use "Promise" instead a verb "Undertake", if it concerns topics such as agree.

Common collocations

action promise action undertake action
death promise death undertake death
orders promise orders undertake orders

Both words in one sentence

  • Literature / The Voyage of St. Brendan In the process, the legend branched out into several variants which modify or expand the original tale: In many vernacular versions an angel commands Brendan to undertake the voyage because Brendan does not believe in the existence of the Land of Promise and has burned a book telling about it.
Cite this Source
Undertake and Promise. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/promise/undertake
Promise & Undertake. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/promise/undertake>.
Undertake or Promise. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/promise/undertake.
Google Ngram Viewer shows how "promise" and "undertake" have occurred on timeline