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white hat

noun, Informal.
1.
a virtuous hero, especially in a cowboy movie; good guy.
Compare black hat (def 1).
Related forms
white-hat, white-hatted, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for white hat
Contemporary Examples
Historical Examples
  • "Far more hunt with a hare nor a fox," now observes Mr. Bonnet, raising his white hat to cool his bald head.

    Ask Momma R. S. Surtees
  • She was a vision of dainty purity in her white gown, white hat, and gloves.

    Jewel Clara Louise Burnham
  • Next morning the snow had vanished, and the white hat must have been obvious to the wayfaring man though a fool.

    Much Darker Days Andrew Lang (AKA A. Huge Longway)
  • Ursula had a new white dress of soft crepe, and a white hat.

    The Rainbow D. H. (David Herbert) Lawrence
  • I have a white hat, it is much admired; also a plaid, and a heavy stoop; so I take my walks abroad, witching the world.

  • My white hat with the blush-roses will look sweet with this frock.

  • "You're giving her plenty of room, Mr. Woodburn," said the white hat in front.

    Boy Woodburn Alfred Ollivant
  • The man in the white hat was described to me, and the exact time and place of the meeting.

    Tales of Chinatown Sax Rohmer
  • One day I entered a shop on the Boulevards to buy a white hat.

British Dictionary definitions for white hat

white hat

noun
1.
(informal)
  1. a computer hacker who is hired by an organization to undertake nonmalicious hacking work in order to discover computer-security flaws
  2. (as modifier): a white-hat hacker Compare black hat
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
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Contemporary definitions for white hat
noun

a computer programmer hired to prevent illegal acts such as hacking a forbidden network or sending out a virus or worm; also, a computer expert, usually a former hacker, who now uses his or her skills for legitimate causes; also called white hat hacker

Word Origin

fr its use in western /cowboy movies

Usage Note

computing

Dictionary.com's 21st Century Lexicon
Copyright © 2003-2014 Dictionary.com, LLC
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Slang definitions & phrases for white hat

white-face

noun

A clown (1890s+ Circus)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Difficulty index for white hat

Few English speakers likely know this word

Word Value for white

11
10
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