Simple past tense and past participle of outshine.(verb)
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Use "outshone" in a sentence
"Some even argue that this stocking-stuffer title outshone the more anticipated Half-Life and Team Fortress games that came bundled with Portal in the 2007 hit Orange Box for PC, Xbox 360, and PlayStation 3."
"At the Academy Awards last week, Kathryn Bigelow's gritty Iraq War movie "The Hurt Locker" outshone "Avatar" after a nail-biting campaign season."
"Though Akshay was slightly apprehensive in helping Deepika considering 'how good women are at picking up skills', he was quite sure he wouldn't be 'outshone' by his leading lady."