Be certain
Rely and be certain are semantically related. In some cases you can use "Rely" instead a verb phrase "Be certain".
Rely
Rely verb - To place reliance or trust.
Be certain and rely are semantically related. Sometimes you can use "Be certain" instead a verb "Rely".
Mutual synonyms
Both terms in one sentence
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When the other players question how they can be certain his die rolls will be fair (they rely on him reporting the results, since he plays by webcam) he offers them each a +5 vorpal sword that he randomly rolled as a show of faith.
Source: Webcomic / Full Frontal Nerdity
Cite this Source
Rely and Be certain. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/be_certain/rely
Be certain & Rely. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/be_certain/rely>.
Rely or Be certain. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/be_certain/rely.
Google Ngram Viewer shows how "be certain" and "rely" have occurred on timeline