white hat

[ hwahyt-hat, wahyt ]

/ ˈʰwaɪt ˈhæt, ˈwaɪt /

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noun Informal.

a virtuous hero, especially in a cowboy movie; good guy.

Also called white hat hack·er .Computers. a hacker who violates the security of a system with the knowledge and consent of the owner or developer in order to test the code, without malicious intent.

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QUIZ

CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?

Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Compare black hat.

Origin of white hat

First recorded in 1960–65 for def. 1, and in 1990–95 for def. 2; from the white hat often worn by the virtuous hero in a cowboy movie

OTHER WORDS FROM white hat

white-hat, white-hat·ted, adjective

Words nearby white hat

white-haired, white-haired boy, white hake, Whitehall, white-handed gibbon, white hat, whitehead, white-headed, white heat, white hellebore, white hole

How to use white hat in a sentence

You see, we open with Olivia lounging with her white hat and a copy of Gone Girl on the beach.
‘Scandal’ Review: Olivia Pope Has Lost Her Damn Mind|Kevin Fallon|September 26, 2014|DAILY BEAST
But these hidden passions were before young farmer Wurzel, in his blue tie and white hat, had proposed to her.
The Pit Town Coronet, Volume I (of 3)|Charles James Wills
The sun was on Evelyn Clifford's hair, burnishing it to a halo of gold under the white hat.
Rosemary in Search of a Father|C. N. Williamson
The big man puffed violently into the flowers of his wife's little white hat.
The Nabob|Alphonse Daudet

One had a tall white hat like a truncated cone, with a flat brim, a head-covering I remembered seeing in Nakchu.
Trans-Himalaya, Vol. 2 (of 2)|Sven Hedin
The clerk rubbed a speck off one of his finger nails and glanced sidewise at a tall man in a white hat sitting in the lobby.
Sixes and Sevens|O. Henry

British Dictionary definitions for white hat

white hat

noun

informal

a computer hacker who is hired by an organization to undertake nonmalicious hacking work in order to discover computer-security flaws
(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

white hat

COMPARE MEANINGS

Origin of white hat

OTHER WORDS FROM white hat

Words nearby white hat

Words related to white hat

How to use white hat in a sentence

British Dictionary definitions for white hat