Must
Must verb - To be under necessity or obligation to.
Usage example: we must be quiet during the performance
Ought
Mutual synonyms
Both words in one sentence
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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.
Source: Getting Crap Past the Radar - I ought to tear the tongue out of your mouth, what must I do?
Source: Calling the Old Man Out
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