Reason
Thinker
Thinker noun - The part of a person that feels, thinks, perceives, wills, and especially reasons.
Usage example: loves crossword puzzles, bridge, and other pastimes that makes her use the old thinker
Reason and thinker are semantically related. Sometimes you can use "Reason" instead a noun "Thinker".
Mutual synonyms
Related pairs
How words are described
Both words in one sentence
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One reason he's such an effective strategist is because he's a lateral thinker.
Source: Literature / Ender's Game -
Caine, for some reason known only to himself, is crouched in the Rodin's Thinker pose next to the statue of Christ the Redeemer in Rio de Janeiro, and part of the tune is playing.
Source: Narm / Live-Action TV -
A key reason the Mad Thinker is constantly defeated is because, despite all his genius and amazing ability to predict things in advance, he still fails to calculate how people will react differently than he expects them to in non-selfish ways.
Source: Evil Cannot Comprehend Good
Cite this Source
Thinker and Reason. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/reason/thinker
Reason & Thinker. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/reason/thinker>.
Thinker or Reason. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/reason/thinker.
Google Ngram Viewer shows how "reason" and "thinker" have occurred on timeline