クリアランスの定義と意味 - メリアム・ウェブスター

CLEARANCE 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 More from M-W Show more Show more Citation Kids Medical More from M-W Save Word To save this word, you'll need to log in. Log In clearance noun clear·​ance ˈklir-ən(t)s Synonyms of clearance Simple Definition A Simple Definition is available from our Learner's Dictionary to help you understand the meaning faster. 1 : an act or process of clearing : such as a : the removal of buildings from an area (such as a city slum) b : the act of clearing a ship at the customhouse also : the papers showing that a ship has cleared c : the offsetting of checks and other claims among banks through a clearinghouse d : certification as clear of objection : authorization security clearance e : a sale to clear out stock f : authorization for an aircraft to proceed especially with a specified action clearance to land 2 : the distance by which one object clears another or the clear space between them 3 : the volume of blood or plasma that can be freed of a specified constituent in a specified time by its excretion into the urine through the kidneys a creatine clearance of 25 milliliters per minute called also renal clearance Synonyms of clearance Relevance permission authorization consent granting See All Synonyms & Antonyms in Thesaurus Examples of clearance in a Sentence She has a security clearance that allows her to see the classified information. The pilot got clearance to land. That flight has not received clearance for landing. There was only 10 inches of clearance between the car and the side of the tunnel. a bridge with a 100-foot clearance above the water the clearance of forests for farming slum clearance to make room for new housing 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 truck had been at the head of a column of seven rescue vehicles, all of which had received clearance from the tower to cross Runway 4 at Taxiway D and head toward a United Airlines flight that was evacuating due to a strange odor onboard. — Evan Simko-Bednarski, New York Daily News , 28 Apr. 2026 There was Jack Drury diving to turn Anze Kopitar’s faceoff win into a clearance for the aggressive Avalanche penalty kill. — Peter Baugh, New York Times , 26 Apr. 2026 Lyon center back Ingrid Engen, stretching to make the clearance , inadvertently turned the ball into her own net. — ABC News , 26 Apr. 2026 The vessels have exited the Strait of Hormuz but face severe restrictions despite earlier clearance given by the Iranian government, he was cited as saying by the national Bernama news agency. — Sarah Dean, NBC news , 25 Apr. 2026 See All Example Sentences for clearance Word History First Known Use 1540, in the meaning defined at sense 1 Time Traveler The first known use of clearance was in 1540 See more words from the same year Phrases Containing clearance clearance sale renal clearance road / ground clearance security clearance Rhymes for clearance adherence appearance coherence preclearance disappearance incoherence interference perseverance reappearance noninterference See All Rhymes for clearance Browse Nearby Words clear-air turbulence clearance clearance fit See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Clearance.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/clearance. Accessed 5 May. 2026. Copy Citation Kids Definition clearance noun clear·​ance ˈklir-ən(t)s 1 a : an act or process of clearing b : the act of clearing a ship at the customhouse c : the papers showing that a ship has cleared d : authorization for an airplane to proceed 2 : a sale to clear out stock 3 : the distance by which one object keeps from hitting or touching another or the clear space between them Medical Definition clearance noun clear·​ance ˈklir-ən(t)s : the volume of blood or plasma that could be freed of a specified constituent in a specified time (usually one minute) by excretion of the constituent into the urine through the kidneys called also renal clearance More from Merriam-Webster on clearance Nglish: Translation of clearance for Spanish Speakers Britannica.com: Encyclopedia article about clearance Last Updated: 29 Apr 2026 - Updated example sentences Love words? Need even more definitions? 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