Must and Ought

Must

Must verb - To be under necessity or obligation to.
Usage example: we must be quiet during the performance

Ought is a synonym for must in auxiliary verb topic. In some cases you can use "Ought" instead the word "Must" as a verb or a noun, when it comes to topics like necessity. popular alternative

Ought

Definitions of Must not found.

Must is a synonym for ought in auxiliary verb topic. You can use "Must" instead the word "Ought" as a verb or a noun, if it concerns topics such as responsibility, assurance, want, burden. popular alternative

Both words in one sentence

  • Getting Crap Past the Radar The Crap must get past the Radar: The inclusion of the content must be intentional, and the creators of the work must be aware that it ought to be censored.
  • I ought to tear the tongue out of your mouth, what must I do?
Cite this Source
Ought and Must. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/must/ought
Must & Ought. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/must/ought>.
Ought or Must. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/must/ought.
Google Ngram Viewer shows how "must" and "ought" have occurred on timeline