Certainly
Mutual synonyms
Both words in one sentence
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While Yuno certainly believes firmly in this trope to the point where she actually traveled to a parallel space-time universe just to be with him again, Yuki is...less than convinced.
Source: Stalking Is Love -
Really Gets Around: Trixie is sort of hinted to, and certainly advertises herself as this — though anything that may or may happen between her and the numerous men she flirts with and gets the phone numbers of, stays firmly off-screen.
Source: Podcast / Black Jack Justice -
Surak (politely but firmly) informs Kirk that he is fully aware that if he heads to the "Evil" camp offering peace, they will almost certainly kill him.
Source: Badass Pacifist
Cite this Source
Firmly and Certainly. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/certainly/firmly
Certainly & Firmly. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/certainly/firmly>.
Firmly or Certainly. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/certainly/firmly.
Google Ngram Viewer shows how "certainly" and "firmly" have occurred on timeline