Expression
Expression noun - A pronounceable series of letters having a distinct meaning especially in a particular field.
Usage example: the expression “John Doe” is used in legal proceedings to refer to a person whose actual name is either unknown or being withheld from the public
Idiom is a synonym for expression in speech topic. In some cases you can use "Idiom" instead a noun "Expression", when it comes to topics like verbalization. popular alternative
Idiom
Idiom noun - A sequence of words having a specific meaning.
Usage example: the English idiom “how are you doing?” is our version of a greeting that in some other languages can be translated as “how are you going?”
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Synonyms for Idiom
Expression is a synonym for idiom in speech topic. You can use "Expression" instead a noun "Idiom", if it concerns topics such as turn of phrase. popular alternative
Mutual synonyms
How words are described
Both words in one sentence
- Strangely, this resulted in the English idiom: "The iron entered his soul"- the expression should have been "His neck was put in iron".
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The original expression is an idiom of unknown origin but originating in the early 20th century, meaning "everything that wasn't bolted down".
Source: Kitchen Sink Included -
Uhura explains the expression to her and complains that she has to make yet another adjustment to the translators' idiom-handling code.
Source: Literature / Rihannsu
Cite this Source
Idiom and Expression. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/expression/idiom
Expression & Idiom. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/expression/idiom>.
Idiom or Expression. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/expression/idiom.
Google Ngram Viewer shows how "expression" and "idiom" have occurred on timeline