give someone/something a run for their money
US /ɡɪv ˈsʌm.wʌn ˈsʌm.θɪŋ ə rʌn fɔr ðɛr ˈmʌn.i/
UK /ɡɪv ˈsʌm.wʌn ˈsʌm.θɪŋ ə rʌn fɔr ðɛr ˈmʌn.i/
1.
to compete very well against someone or something, making them work hard to win
:
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The underdog team really gave the champions a run for their money in the final match.
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Our new product is designed to give the market leader a run for their money.