challenge

[ chal-inj ]

noun

1. a call or summons to engage in any contest, as of skill, strength, etc.
2. something that by its nature or character serves as a call to battle, contest, special effort, etc.:

   Space exploration offers a challenge to humankind.

3. a call to fight, as a battle, a duel, etc.
4. a demand to explain, justify, etc.:

   a challenge to the treasurer to itemize expenditures.

5. difficulty in a job or undertaking that is stimulating to one engaged in it.
6. Military. the demand of a sentry for identification or a countersign.
7. Law. a formal objection to the qualifications of a particular juror, to that juror serving, or to the legality of an entire jury. Compare peremptory challenge.
8. the assertion that a vote is invalid or that a voter is not legally qualified.
9. Biology. the process of inducing or assessing physiological or immunological activity by exposing an organism to a specific substance.
10. Hunting. the crying of a hound on finding a scent.

verb (used with object)

, chal·lenged, chal·leng·ing.

1. to summon to a contest of skill, strength, etc.

   Synonyms: invite, bid, dare

2. to take exception to; call in question:

   to challenge the wisdom of a procedure.

   Synonyms: doubt, impute, question

3. to demand as something due or rightful.
4. Military. to halt and demand identification or countersign from.
5. Law. to take formal exception to (a juror or jury).
6. to have a claim to; invite; arouse; stimulate:

   a matter which challenges attention.

7. to assert that (a vote) is invalid.
8. to assert that (a voter) is not qualified to vote.
9. to expose an organism to a specific substance in order to assess its physiological or immunological activity.
10. Archaic. to lay claim to.

verb (used without object)

, chal·lenged, chal·leng·ing.

1. to make or issue a challenge.
2. Hunting. (of hounds) to cry or give tongue on picking up the scent.

adjective

1. 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

/ ˈtʃælɪndʒ /

verb

1. to invite or summon (someone to do something, esp to take part in a contest)
2. also intr to call (something) into question; dispute
3. to make demands on; stimulate

   the job challenges his ingenuity

4. to order (a person) to halt and be identified or to give a password
5. law to make formal objection to (a juror or jury)
6. to lay claim to (attention, etc)
7. intr hunting (of a hound) to cry out on first encountering the scent of a quarry
8. to inject (an experimental animal immunized with a test substance) with disease microorganisms to test for immunity to the disease

noun

1. a call to engage in a fight, argument, or contest
2. a questioning of a statement or fact; a demand for justification or explanation
3. a demanding or stimulating situation, career, object, etc
4. a demand by a sentry, watchman, etc, for identification or a password
5. an assertion that a person is not entitled to vote or that a vote is invalid
6. 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 )

Derived Forms

• ˈchallengeable, adjective
• ˈchallenger, noun

Other Words From

• challenge·a·ble adjective
• pre·challenge verb (used with object) prechallenged prechallenging
• re·challenge verb (used with object) rechallenged rechallenging
• un·challenge·a·ble adjective
• un·challenge·a·bly adverb

Word History and Origins

Origin of challenge¹

First recorded in 1175–1225; Middle English chalenge, from Old French, variant of chalonge, from Latin calumnia “false statement”; calumny

Word History and Origins

Origin of challenge¹

C13: from Old French chalenge, from Latin calumnia calumny

Example Sentences

The study, out today in the American Journal of Clinical Nutrition, challenges current views on obesity risk by showing slower fat gain among these infants compared to others in their first year.

From Science Daily

Studies of modern genetic samples face challenges in detecting ancient natural selection events.

From Science Daily

What challenges have you faced throughout your career that drove you to that moment of delivering so much power to so many people?

From Salon

However, Maskeliūnas adds, that the latter aspect of the research might raise some challenges.

From Science Daily

Alcohol responsiveness was determined by a standardized alcohol challenge test using a controlled amount of vodka.

From Science Daily

Related Words

• objection
• protest
• test
• threat