FAILの定義と意味 - メリアム・ウェブスター

FAIL Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition verb noun verb 2 verb noun Synonyms Example Sentences Word History Phrases Containing Rhymes Entries Near Related Articles 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 fail 1 of 2 verb ˈfāl failed ; failing ; fails Synonyms of fail intransitive verb 1 a : to lose strength : weaken her health was failing b : to fade or die away until our family line fails c : to stop functioning normally The patient's heart failed . 2 a : to fall short failed in his duty b : to be or become absent or inadequate The water supply failed . c : to be unsuccessful The marriage failed . specifically : to be unsuccessful in achieving a passing grade took the exam and failed d : to become bankrupt or insolvent Banks were failing . transitive verb 1 a : to disappoint the expectations or trust of Her friends failed her. b : to miss performing an expected service or function for His wit failed him. 2 : to be deficient in : lack … our nation's greatest resource is our youth. … It has … never failed an invincible courage … — Douglas MacArthur 3 : to leave undone : neglect fail to lock the door 4 a : to be unsuccessful in passing failed chemistry b : to grade (someone, such as a student) as not passing The teacher failed only his two worst students. failingly ˈfā-liŋ-lē adverb fail 2 of 2 noun plural fails 1 : failure — usually used in the phrase without fail Every day, without fail , he has toast and coffee for breakfast. see also epic fail 2 : a failure (as by a security dealer) to deliver or receive securities within a prescribed period after purchase or sale Synonyms of fail Relevance Verb die crash See All Synonyms & Antonyms in Thesaurus Examples of fail in a Sentence Verb He failed in his first attempt but succeeded in his second attempt. His first company failed , but his second company succeeded. He felt that he had failed her when she needed him most. The government has failed the voters. 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 . Verb The carrier failed to secure a financial lifeline to continue operating, ending the discount air travel pioneer’s time in the sky, costing some 17,000 jobs and thousands of cheap flights in the market. — Leslie Josephs, CNBC , 2 May 2026 Symptoms include gray, brown or tan moldy edges on petals, and buds that become soggy, ball up and fail to open. — Rita Perwich, San Diego Union-Tribune , 2 May 2026 Noun Among the nearly 50 elderly people was Carmen Casado, an 84-year-old retired chemical engineer who attends without fail . — ABC News , 26 Apr. 2026 Fortunately, Martha's no- fail technique is easy to remember and even easier to execute. — Martha Stewart , 11 Apr. 2026 See All Example Sentences for fail Word History Etymology Verb and Noun Middle English failen , from Anglo-French faillir , from Vulgar Latin *fallire , alteration of Latin fallere to deceive, disappoint First Known Use Verb 13th century, in the meaning defined at intransitive sense 1a Noun 13th century, in the meaning defined at sense 1 Time Traveler The first known use of fail was in the 13th century See more words from the same century Phrases Containing fail epic fail fail - safe fail to see / understand pass - fail without fail words fail someone Rhymes for fail ail ale bail baile dail flail frail gael gail grail hail jail See All Rhymes for fail Browse Nearby Words faik fail failance See all Nearby Words Articles Related to fail The History of 'Epic Fail' People have used 'fail' to mean 'failure' since the 1600s Failed Attempts to Reform English... 8 spelling suggestions that didn't stick Cite this Entry Style MLA Chicago APA Merriam-Webster “Fail.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/fail. Accessed 6 May. 2026. Copy Citation Kids Definition fail 1 of 2 verb ˈfā(ə)l 1 a : to lose strength : weaken failing eyesight b : to stop functioning the engine failed 2 a : to fall short failed in their duty b : to become absent or lacking the power failed c : to be unsuccessful (as in passing an examination) d : to grade as not passing fail a student e : to become bankrupt 3 : disappoint , desert fail a friend in need 4 : to leave undone : neglect fail to answer the telephone fail 2 of 2 noun : failure sense 1 — usually used in the phrase without fail Medical Definition fail intransitive verb ˈfā(ə)l 1 : to weaken or lose strength her health was failing 2 : to stop functioning normally the patient's heart failed Legal Definition fail intransitive verb 1 : to be or become inadequate or unsuccessful especially in fulfilling certain formal requirements even if one or more terms are left open, a contract for sale does not fail for indefiniteness — Uniform Commercial Code 2 : to become bankrupt or insolvent transitive verb : to leave undone or neglect to do fail to appear in court fail to read a contract More from Merriam-Webster on fail Nglish: Translation of fail for Spanish Speakers Last Updated: 3 May 2026 - Updated example sentences Love words? 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