For certain
For certain adverb - Definitely or positively (`sure' is sometimes used informally for `surely').
Significantly and for certain are semantically related. In some cases you can use "Significantly" instead an adverb phrase "For certain".
Significantly
Significantly adverb - In a significant manner.
For certain and significantly are semantically related. Sometimes you can use "For certain" instead an adverb "Significantly".
Mutual synonyms
Cite this Source
Significantly and For certain. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/for_certain/significantly
For certain & Significantly. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/for_certain/significantly>.
Significantly or For certain. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/for_certain/significantly.
Google Ngram Viewer shows how "for certain" and "significantly" have occurred on timeline