one-up

[wuhn-uhp] /ˈwʌnˈʌp/
verb (used with object), one-upped, one-upping.
1.
to get the better of; succeed in being a point, move, step, etc., ahead of (someone):
"They one-upped the competition."
Origin
1960–65
British Dictionary definitions for one upped
one-up
 
adj
informal having or having scored an advantage or lead over someone or something

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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Slang related to one upped

one-up

adverb phrase
  1. In a superior position; at an advantage : I always try to be one-up (1919+)
  2. Ahead by one: The Pinks were one-up on the Puces, 109 to 108
verb

To get the advantage over : I wasn't trying to one-up Arthur Schwartz


Dictionary of American Slang
Copyright © 1986 by HarperCollins Publishers
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Difficulty index for one upped

Few English speakers likely know this word

Tile value for one

3
4
Scrabble Words With Friends