For certain
For certain adverb - Definitely or positively (`sure' is sometimes used informally for `surely').
Of course and for certain are semantically related. In some cases you can use "Of course" instead an adverb phrase "For certain".
Of course
Of course adverb - As might be expected.
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Synonyms for Of course
For certain and of course are semantically related. Sometimes you can use "For certain" instead an adverb phrase "Of course".
Mutual synonyms
Related pairs
- precisely and for certain
- precisely and of course
- truly and for certain
- truly and of course
- absolutely and for certain
- absolutely and of course
- quite and for certain
- quite and of course
- sure and for certain
- sure and of course
- positively and for certain
- positively and of course
- definitely and for certain
- definitely and of course
Both terms in one sentence
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And of course, on future playthroughs you can fight them on your own for certain alternate endings.
Source: Hopeless Boss Fight -
By that token, Soma, Hector, and some incarnations of Alucard may or may not also qualify (for certain values of "heroic", of course).
Source: Franchise / Castlevania -
No one of course can know for certain, but the setup strongly resembled those in her books.
Source: Identity Amnesia
Cite this Source
Of course and For certain. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/for_certain/of_course
For certain & Of course. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/for_certain/of_course>.
Of course or For certain. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/for_certain/of_course.
Google Ngram Viewer shows how "for certain" and "of course" have occurred on timeline