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a. A male deer.
b. The male of various other mammals, such as antelopes, kangaroos, mice, or rabbits.
c. Antelope considered as a group: a herd of buck.
a. A robust or high-spirited young man.
b. A fop.
3. Offensive A Native American or black man.
4. An act or instance of bucking: a horse that unseated its rider on the first buck.
b. bucks Buckskin breeches or shoes.
v. bucked, buck·ing, bucks
1. To leap upward arching the back: The horse bucked in fright.
2. To charge with the head lowered; butt.
3. To make sudden jerky movements; jolt: The motor bucked and lurched before it finally ran smoothly.
4. To resist stubbornly and obstinately; balk.
5. Informal To strive with determination: bucking for a promotion.
1. To throw or toss by bucking: buck off a rider; bucked the packsaddle off its back.
2. To oppose directly and stubbornly; go against: "Los Angeles County, the most populous county in the country, is bucking the trend" (American Demographics).
3. Football To charge into (an opponent's line) carrying the ball.
4. To butt against with the head.
Of the lowest rank in a specified military category: a buck private; a buck sergeant.
To summon one's courage or spirits; hearten: My friends tried to buck me up after I lost the contest.
[Middle English bukke, from Old English buc, male deer, and bucca, male goat.]
1. A sawhorse or sawbuck.
2. A leather-covered frame used for gymnastic vaulting.
[Alteration (influenced by buck) of Dutch bok, male goat, trestle, from Middle Dutch boc.]
1. Informal A dollar.
2. Informal An amount of money: working overtime to make an extra buck.
a. A large round amount of currency, especially a hundred dollars.
b. A hundred of some other units, especially miles per hour or pounds: was doing a buck twenty out on the Interstate; a boxer weighing in at a buck fifty.
[Short for buckskin (from its use in trade).]
1. Games A counter or marker formerly passed from one poker player to another to indicate an obligation, especially one's turn to deal.
2. Informal Obligation to account for something; responsibility: tried to pass the buck for the failure to his boss.
tr.v. bucked, buck·ing, bucks InformalIdiom:
To pass (a task or duty) to another, especially so as to avoid responsibility: "We will see the stifling of initiative and the increased bucking of decisions to the top" (Winston Lord).
the buck stops here Informal
The ultimate responsibility rests here.
[Short for buckhorn knife (from its use as a marker in poker).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
informal Brit cheered up
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014