表現の定義と意味 - メリアム・ウェブスター

EXPRESSION Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition Definition Synonyms Example Sentences Word History Phrases Containing Rhymes Entries Near Cite this Entry Citation Kids Definition Kids Medical Definition Medical Legal Definition Legal More from M-W Show more Show more Citation Kids Medical Legal More from M-W Save Word To save this word, you'll need to log in. Log In expression noun ex·​pres·​sion ik-ˈspre-shən Synonyms of expression Simple Definition A Simple Definition is available from our Learner's Dictionary to help you understand the meaning faster. 1 a : an act, process, or instance of representing in a medium (such as words) : utterance freedom of expression Dance is a form of creative expression . b (1) : something that manifests, embodies, or symbolizes something else This gift is an expression of my admiration for you. (2) : a significant word or phrase The expression "piece of cake" means "easy." (3) : a mathematical or logical symbol or a meaningful combination of symbols (4) : the detectable effect of a gene also : expressivity sense 1 2 a : a mode, means, or use of significant representation or symbolism especially : felicitous or vivid indication or depiction of mood or sentiment He read the poem aloud with expression . b (1) : the quality or fact of being expressive (2) : facial aspect or vocal intonation as indicative of feeling had a surprised expression 3 : an act or product of pressing out expressional ik-ˈspre-sh(ə-)nəl adjective Synonyms of expression Relevance voice formulation wording See All Synonyms & Antonyms in Thesaurus Examples of expression in a Sentence Dance is a form of artistic expression . He uses some very odd expressions . The expression “to make fun of” means “to ridicule.” Judging from her expression , I think the gift was a complete surprise. We saw his expression change from angry to sad. She wore a smug expression . See More Recent Examples on the Web Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback . The Moon’s move into Sagittarius lights up your 5th House of Creativity, pulling you toward expression , connection, and enjoyment that feels natural. — Tarot.com, Hartford Courant , 3 May 2026 Guanipa urged exiles to go beyond expressions of solidarity and become more directly involved in advocacy. — Antonio María Delgado, Miami Herald , 2 May 2026 Sean O’Connor Pasadena The Los Angeles Times welcomes expressions of all views. — Los Angeles Times , 2 May 2026 For Hitler, the autobahn was a concrete expression of German efficiency and nationalism. — Big Think , 1 May 2026 See All Example Sentences for expression Word History First Known Use 15th century, in the meaning defined at sense 1a Time Traveler The first known use of expression was in the 15th century See more words from the same century Phrases Containing expression find expression freedom of expression gender expression give expression to re - expression self - expression Rhymes for expression accession aggression compression concession confession depression digression discretion impression obsession oppression possession See All Rhymes for expression Browse Nearby Words expressible expression expressional See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Expression.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/expression. Accessed 5 May. 2026. Copy Citation Kids Definition expression noun ex·​pres·​sion ik-ˈspresh-ən 1 : the act or process of expressing especially in words 2 a : a meaningful word or phrase b : a mathematical or logical symbol or a combination of symbols and signs representing a quantity or operation 3 : a way of speaking or singing or of playing an instrument so as to show mood or feeling sing with expression 4 : the way one's face looks or one's voice sounds that shows one's feelings a pleased expression 5 : the detectable effect of a gene expressionless -ləs adjective expressionlessly adverb expressionlessness noun Medical Definition expression noun ex·​pres·​sion ik-ˈspresh-ən 1 a : something that manifests, represents, reflects, embodies, or symbolizes something else the first clinical expression of a disease b (1) : the detectable effect of a gene also : the sum of the processes (as transcription and translation) by which a gene is manifested in the phenotype gene expression can be controlled by regulatory proteins that bind to specific sites on DNA — Mark Ptashne (2) : expressivity 2 : facial aspect or vocal intonation as indicative of feeling 3 : an act or product of pressing out Legal Definition expression noun ex·​pres·​sion 1 : an act, process, or instance of representing or conveying in words or some other medium : speech protected expression under the First Amendment 2 : a mode or means of expressing an idea, opinion, or thought Note: An expression is protectible under copyright law, but an idea is not. More from Merriam-Webster on expression Nglish: Translation of expression for Spanish Speakers Last Updated: 3 May 2026 - Updated example sentences Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Merriam-Webster unabridged More from Merriam-Webster Word of the Day augur See Definitions and Examples » Get Word of the Day daily email! Popular in Grammar & Usage See More More Commonly Mispronounced Words 5 Verbal Slip Ups and Language Mistakes Is that lie 'bald-faced' or 'bold-faced'? The Difference Between 'i.e.' and 'e.g.' Why is '-ed' sometimes pronounced at the end of a word? 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