Deduction
Reason
Reason noun - The thought processes that have been established as leading to valid solutions to problems.
Usage example: in a time of national crisis we need to listen to the voice of reason
Deduction is a synonym for reason in reasoning topic. Sometimes you can use "Deduction" instead a noun "Reason", if it concerns topics such as conclusion, mental analysis.
How words are described
Both words in one sentence
- The "classic" tabletop game Clue/Cluedo (depending on where you live) is a game about logic and deduction, with very little reason for having a die-roll to move around the board - in fact, different editions of the game change the numbers of squares between various rooms for no apparent reason.
Source: The Artifact -
Then it's revealed that Liber8 actually is responsible, having anticipated that deduction and framed the gang, all to hide the real reason: moving their own favored candidate into position for election.
Source: Series / Continuum
Cite this Source
Reason and Deduction. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/deduction/reason
Deduction & Reason. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/deduction/reason>.
Reason or Deduction. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/deduction/reason.
Google Ngram Viewer shows how "deduction" and "reason" have occurred on timeline