ONCEの定義と意味 - メリアム・ウェブスター

ONCE Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition adverb noun adjective conjunction adverb 4 adverb noun adjective conjunction Synonyms Example Sentences Word History Phrases Containing Rhymes Entries Near Cite this Entry Citation Kids Definition Kids More from M-W Show more Show more Citation Kids More from M-W Save Word To save this word, you'll need to log in. Log In once 1 of 4 adverb ˈwən(t)s Synonyms of once 1 : one time and no more rode a horse only once went skydiving once 2 : at any one time : under any circumstances : ever didn't once thank me 3 : at some indefinite time in the past : formerly was once a booming mining town 4 : by one degree of relationship first cousin once removed see also: once again once and for all once in a while once 2 of 4 noun : one single time : one time at least Please be on time this once . see also: at once once 3 of 4 adjective : that once was : former … contributions to enrich the legal resources of the once province of Britain. — J. N. Pomeroy once 4 of 4 conjunction : at the moment when : as soon as Once she spoke, I recognized her. Synonyms of once Relevance Adverb formerly Adjective former old other erstwhile past sometime late Conjunction when See All Synonyms & Antonyms in Thesaurus Examples of once in a Sentence Adverb I will repeat the question once . The play was performed only once . She didn't once thank me. He didn't look at me once . It was once done that way. A river once flowed through this canyon. It was once a booming mining town. Their music was once very popular. Noun I have tried Indian food more than once . Please be on time just this once . For once you seem to know what I'm talking about. Adjective the once child star is now a lawyer in the entertainment industry Conjunction Once she spoke, I recognized her. you should have stopped wrestling once you knew someone was getting hurt, not five minutes later 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 . Adverb In the process, however, one of the big distinguishing aspects of TV – the large audiences who once assembled to watch dramas, sitcoms and reality shows – has eroded. — Brian Steinberg, Variety , 30 Apr. 2026 And then, almost all at once , everything changed. — Jackson Thompson Outkick, FOXNews.com , 30 Apr. 2026 Noun At the once -swank Primrose Hotel, Russian refugees recline on the porch, playing pinochle, watching the night traffic of Collins Avenue rumble down South Beach. — Miami Herald Archives, Miami Herald , 27 Feb. 2026 Scrambling to find a district that fits, though sometimes unseemly, is commonplace for politicians of both major parties after the usual once -a-decade redistricting process. — Michael Smolens, San Diego Union-Tribune , 5 Dec. 2025 Adjective Stripes Beauty has expanded into major retailers like Ulta Beauty and Sephora, with the once niche, uncomfortable category now becoming a mainstream part of women’s consumer health and beauty. — Krysta Escobar, CNBC , 18 Apr. 2026 Joseph Duggar's arrest is the latest fall from grace for the once picture-perfect Duggar family. — Melina Khan, USA Today , 20 Mar. 2026 See All Example Sentences for once Word History Etymology Adverb, Noun, Adjective, and Conjunction Middle English ones , from genitive of on one First Known Use Adverb 12th century, in the meaning defined at sense 1 Noun 13th century, in the meaning defined above Adjective 1620, in the meaning defined above Conjunction 1747, in the meaning defined above Time Traveler The first known use of once was in the 12th century See more words from the same century Phrases Containing once at once every once in a while give (someone or something) a / the once - over once again once again / more once and for all once bitten, twice shy once in a blue moon once in a lifetime once in a while once more once or twice once - over once that once upon a time you're only young once Rhymes for once bunce dunce See All Rhymes for once Browse Nearby Words on campus once once-accented octave See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Once.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/once. Accessed 4 May. 2026. Copy Citation Kids Definition once 1 of 3 adverb ˈwən(t)s 1 : one time only will repeat the question once 2 : at any one time : ever once you hesitate, it's too late 3 : at some time in the past : formerly it was once done that way 4 : by one degree of relationship cousin once removed once 2 of 3 noun : one single time just this once once 3 of 3 conjunction : as soon as once that is done, all will be well More from Merriam-Webster on once Nglish: Translation of once for Spanish Speakers Last Updated: 30 Apr 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 scrupulous See Definitions and Examples » Get Word of the Day daily email! 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