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Answer for the clue "A demand by a sentry for a password or identification ", 9 letters:
challenge

Alternative clues for the word challenge

Word definitions for challenge in dictionaries

Wikipedia Word definitions in Wikipedia
In the game of Scrabble , a challenge is the act of one player questioning the validity of one or more words formed by another player in the most recent turn. If one or more of the challenged words is not in the previously agreed-upon dictionary, the challenged ...

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
I. noun COLLOCATIONS FROM OTHER ENTRIES a challenge to sb’s authority ▪ The leadership saw the demonstrations as a challenge to their authority. accept a challenge ▪ To protect the environment we must accept some difficult challenges. challenge a claim ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
c.1200, "to rebuke," from Old French chalongier "complain, protest; haggle, quibble," from Vulgar Latin calumniare "to accuse falsely," from Latin calumniari "to accuse falsely, misrepresent, slander," from calumnia "trickery" (see calumny ).\n \nFrom late ...

Gazetteer Word definitions in Gazetteer
Population (2000): 1069 Housing Units (2000): 580 Land area (2000): 9.664709 sq. miles (25.031480 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 9.664709 sq. miles (25.031480 sq. km) FIPS code: 12612 Located within: California ...

WordNet Word definitions in WordNet
v. take exception to; "She challenged his claims" [syn: dispute , gainsay ] issue a challenge to; "Fischer challenged Spassky to a match" ask for identification; "The illegal immigrant was challenged by the border guard" raise a formal objection in a court ...

Usage examples of challenge.

From the starboard bow Captain Abernethy shrilled a cry of warning, and the heavy, bellowing voice of Loge shouted an answer of challenge and ferocity.

Although Delaura had sought the support of distinguished members of his own order and even of other communities, none had dared challenge the acta of the convent or contradict popular credulity.

The prospect of Adams succeeding Washington had been ever-present for seven years, but now, separated again by hundreds of miles, they addressed themselves to the growing likelihood of his actually becoming President, exchanged thoughts and feelings on the challenge in a way that apparently they never had before, and that perhaps they would have found impossible except at a distance.

Then came the challenging letters from Henry Akeley which impressed me so profoundly, and which took me for the first and last time to that fascinating realm of crowded green precipices and muttering forest streams.

It was crucial that they file the paperwork in Albany and that Nathaniel pay the taxes as her husband, so that there could be no challenge to the validity of the deed of gift, or her status as a married woman.

Idosso would preen himself as one whom even mighty Amra dared not challenge.

The challenge was taking her mind from her personal problem, and that was good.

Though the first edition of the present work was quite large, yet no challenge of the accuracy of any of its statements concerning experimentation upon human beings or animals has yet appeared.

Lady Appleton had been heard to mutter that there were no challenges left at Leigh Abbey.

Even as tired as she was after the long journey, Susanna was ready to face the challenge of turning Appleton into a second home.

The work was less backbreaking and more challenging, if not physically, then cerebrally.

His feet were flipping and he yipped as if challenging some wolf badman in his dreams.

He liked the challenge of baggataway, the way it pushed him to his limits.

He ducked through them and worked his way up to the beakhead bulkhead, conscious just as he reached it that a French voice was shouting a challenge.

The challenge lies in making lasting behavioral changes that reduce input and increase output.