one upmanship

noun

the art or practice of achieving, demonstrating, or assuming superiority in one's rivalry with a friend or opponent by obtaining privilege, status, status symbols, etc.: the one-upmanship of getting into the president's car pool.

Also, one-ups·man·ship

[wuhn-uhps-muh

n-ship] .

Also called upmanship, upsmanship.

Origin:
1950–55; one up + -manship

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins

World English Dictionary

one-upmanship (wʌnˈʌpmənʃɪp)

—n
	informal the art or practice of achieving or maintaining an advantage over others, often by slightly unscrupulous means

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10

One upmanship is always a great word to know.

So is callithumpian. Does it mean:

a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.

a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.

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"Do you know the balancings of the clouds, the wondrous works of the one whose knowledge is perfect, you whose garments are hot when the earth is still because of the south wind? Can you, like him, spread out the skies, hard as a molten mirror?"

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one upmanship

one-up·man·ship