Argument
Argument noun - A statement given to explain a belief or act.
Usage example: gave a solid argument for the redeeming value of the shockingly violent movie
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Synonyms for Argument
Rationale is a synonym for argument in reason topic. In some cases you can use "Rationale" instead a noun "Argument", when it comes to topics like explanation.
Rationale
Rationale noun - A statement given to explain a belief or act.
Usage example: the rationale for starting the school day an hour later is that kids will supposedly get an extra hour of sleep
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Synonyms for Rationale
Argument is a synonym for rationale in principle topic. You can use "Argument" instead a noun "Rationale", if it concerns topics such as reason, explanation.
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Rationale and Argument. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/argument/rationale
Argument & Rationale. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/argument/rationale>.
Rationale or Argument. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/argument/rationale.
Google Ngram Viewer shows how "argument" and "rationale" have occurred on timeline