Certainly and For certain

Similar meaning terms

Certainly adverb - Definitely or positively (`sure' is sometimes used informally for `surely').

Usage example: she certainly is a hard worker

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For certain is a synonym for certainly. In some cases you can use "For certain" instead an adverb "Certainly".

Nearby Words: certain, certainty

For certain adverb - Definitely or positively (`sure' is sometimes used informally for `surely').

Usage example: they are coming, for certain

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Certainly is a synonym for for certain in definitely topic. You can use "Certainly" instead an adverb phrase "For certain", if it concerns topics such as without doubt.

There's certainly no denying that it is very sexy, and always will be (at least for certain people).

Source: Undead Horse Trope
To be fair, this certainly is a big help when conserving for certain bosses in the game.

Source: Death Is a Slap on the Wrist
Well, you certainly won't if you are intending to get certain pieces of the monsters themselves to get the design specs for certain weapons, as they will at the very least be an annoying chore, and at worst will also be nightmarishly long and induce a huge amount of swears.

Source: Fake Longevity

Cite this Source

For certain and Certainly. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/certainly/for_certain

Certainly & For certain. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/certainly/for_certain>.

For certain or Certainly. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/certainly/for_certain.

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