チャレンジの定義と意味 | Dictionary.com

CHALLENGE Definition & Meaning | Dictionary.com Synonyms challenge American [ chal -inj] / ˈtʃæl ɪndʒ / noun a call or summons to engage in any contest, as of skill, strength, etc. something that by its nature or character serves as a call to battle, contest, special effort, etc.. Space exploration offers a challenge to humankind. a call to fight, as a battle, a duel, etc. a demand to explain, justify, etc.. a challenge to the treasurer to itemize expenditures. difficulty in a job or undertaking that is stimulating to one engaged in it. Military. the demand of a sentry for identification or a countersign. Law. a formal objection to the qualifications of a particular juror, to that juror serving, or to the legality of an entire jury. the assertion that a vote is invalid or that a voter is not legally qualified. Biology. the process of inducing or assessing physiological or immunological activity by exposing an organism to a specific substance. Hunting. the crying of a hound on finding a scent. verb (used with object) challenged, challenging to summon to a contest of skill, strength, etc. Synonyms: invite , bid , dare to take exception to; call in question. to challenge the wisdom of a procedure. Synonyms: doubt , impute , question to demand as something due or rightful. Military. to halt and demand identification or countersign from. Law. to take formal exception to (a juror or jury). to have a claim to; invite; arouse; stimulate. a matter which challenges attention. to assert that (a vote) is invalid. to assert that (a voter) is not qualified to vote. to expose an organism to a specific substance in order to assess its physiological or immunological activity. Archaic. to lay claim to. verb (used without object) challenged, challenging to make or issue a challenge. Hunting. (of hounds) to cry or give tongue on picking up the scent. adjective donated or given by a private, corporate, or government benefactor on condition that the recipient raise an additional specified amount from the public. a challenge grant. challenge British / ˈtʃælɪndʒ / verb to invite or summon (someone to do something, esp to take part in a contest) (also intr) to call (something) into question; dispute to make demands on; stimulate the job challenges his ingenuity to order (a person) to halt and be identified or to give a password law to make formal objection to (a juror or jury) to lay claim to (attention, etc) (intr) hunting (of a hound) to cry out on first encountering the scent of a quarry to inject (an experimental animal immunized with a test substance) with disease microorganisms to test for immunity to the disease "Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 noun a call to engage in a fight, argument, or contest a questioning of a statement or fact; a demand for justification or explanation a demanding or stimulating situation, career, object, etc a demand by a sentry, watchman, etc, for identification or a password an assertion that a person is not entitled to vote or that a vote is invalid law a formal objection to a person selected to serve on a jury ( challenge to the polls ) or to the whole body of jurors ( challenge to the array ) "Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Other Word Forms challengeable adjective challenger noun prechallenge verb (used with object) rechallenge verb (used with object) unchallengeable adjective unchallengeably adverb Etymology Origin of challenge First recorded in 1175–1225; Middle English chalenge, from Old French, variant of chalonge, from Latin calumnia “false statement”; see calumny Explanation A challenge is something that puts you to the test — like running your first marathon or reading War and Peace. Challenge , as a verb, is derived from a Latin word meaning "to accuse falsely," and it is still used much as it was in the 13th century, in the sense of questioning whether something is true or right. Students sometimes challenge a weeknight curfew, and lawyers might challenge the evidence submitted by the other side in a lawsuit. Challenge is also used as a noun for a competition in which people challenge one another to prove that they’re the best at something. Keep Reading on Vocabulary.com Vocabulary lists containing challenge List 2 Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide! The SAT: Language of the Test, List 4 Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use! Academic Vocabulary Toolkit 1, Words 11-20 Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time! Example Sentences Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com. Some figures within the bloc have privately expressed a sense of betrayal, raising fresh doubts about whether Nigeria's fragmented opposition can sustain a coordinated challenge against President Tinubu, 74. From BBC • May 4, 2026 The summit "in a nutshell, will be an opportunity to emphasise that Europe's security is a 360-degree challenge", said a senior EU official. From Barron's • May 4, 2026 In all seriousness, building and flying a kite is an opportunity to embrace a challenge rather than view a difficult task in binary terms, a point Choi and I discussed. From Los Angeles Times • May 3, 2026 The body adapts to challenge, building capacity that remains after the workout ends. From The Wall Street Journal • May 3, 2026 Teller stayed at Los Alamos and aimed his relentless brain at the challenge of the Super. From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin Related Words ask for assert call for claim confront defy demand denounce impose require test try Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023 Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.