Certain
Certain adjective - Having been established and usually not subject to change.
Usage example: a certain percentage of the profits will go to charity
Set is a synonym for certain in characteristic topic. In some cases you can use "Set" instead the word "Certain" as an adjective or a verb, when it comes to topics like change, fixed, undoubtable.
Set
Set adjective - Fully committed to achieving a goal.
Usage example: set on being the first in her family to graduate from college
Certain is a synonym for set in characteristic topic. Sometimes you can use "Certain" instead an adjective "Set", if it concerns topics such as change, established, decided.
Mutual synonyms
Both words in one sentence
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Each adventure has a new set of magic words that share a certain characteristic (they may start with a given letter, have a certain sound, or rhyme with each other).
Source: Western Animation / Wallykazam! -
The good and bad guys each have their set and certain characters and Titans have recurring jingles, though most are interchangeable in their respective sets.
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Characters like Mog and Gau are horrible to use for colosseum battles due to how their Dance and Rage moves makes them be stuck with a set of certain list of moves and can't change out of it.
Source: Video Game / Final Fantasy VI
Cite this Source
Set and Certain. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/certain/set
Certain & Set. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/certain/set>.
Set or Certain. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/certain/set.
Google Ngram Viewer shows how "certain" and "set" have occurred on timeline