保持の定義と意味 - メリアム・ウェブスター

RETENTION Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition Definition Example Sentences Word History 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 retention noun re·​ten·​tion ri-ˈten(t)-shən Synonyms of retention Take our 3 question quiz on retention 1 a : the act of retaining : the state of being retained b : abnormal retaining of a fluid or secretion in a body cavity Take our 3 question quiz on retention 2 a : power of retaining : retentiveness b : an ability to retain things in mind specifically : a preservation of the aftereffects of experience and learning that makes recall or recognition possible 3 : something retained Examples of retention in a Sentence the recruitment and retention of good employees the retention of profits from all sales pills to offset water retention the retention of things learned in school They say the herb promotes memory retention . 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 . Researchers also found that only 8% of all program exits were due to reincarceration, and higher engagement with program staff was linked to better housing outcomes and longer retention . — City News Service, Daily News , 2 May 2026 But while Western knives tend to prioritize durability, many Japanese knife steels prioritize high carbon content for better sharpness and edge retention . — Jesse Raub, Bon Appetit Magazine , 1 May 2026 Judges must garner at least 60% of those retention votes to keep their seats; rarely does any judge fail to do so. — The Editorial Board, Chicago Tribune , 1 May 2026 Meanwhile, retention is fundamentally driven by culture and transparency. — Mike Kelleher, Baltimore Sun , 30 Apr. 2026 See All Example Sentences for retention Word History Etymology Middle English retencioun , from Anglo-French, from Latin retention-, retentio , from retinēre to retain — more at retain First Known Use 14th century, in the meaning defined at sense 1a Time Traveler The first known use of retention was in the 14th century See more words from the same century Rhymes for retention attention contention convention declension detention dimension dissension distension extension intension invention laurentian See All Rhymes for retention Browse Nearby Words retent retention retentionist See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Retention.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/retention. Accessed 6 May. 2026. Copy Citation Kids Definition retention noun re·​ten·​tion ri-ˈten-chən 1 : the act of retaining : the state of being retained 2 : power of retaining 3 : something retained Medical Definition retention noun re·​ten·​tion ri-ˈten-chən 1 : the act of retaining: as a : abnormal retaining of a fluid or secretion in a body cavity retention of urine retention of bile b : the holding in place of a tooth or dental replacement by means of a retainer 2 : a preservation of the aftereffects of experience and learning that makes recall or recognition possible Legal Definition retention noun re·​ten·​tion ri-ˈten-chən 1 : the act of retaining or the state of being retained 2 : the portion of the insurance on a particular risk not reinsured or ceded by the originating insurer More from Merriam-Webster on retention Thesaurus: All synonyms and antonyms for retention Nglish: Translation of retention for Spanish Speakers Britannica.com: Encyclopedia article about retention Last Updated: 3 May 2026 - Updated example sentences Love words? 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