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English definition of “weaken”

weaken

verb [I or T]     /ˈwiːkən/
ECONOMICS, POLITICS, FINANCE to become or make something or someone become less powerful , successful , effective , etc.: A series of scandals weakened investor confidence . The plan has divided the country and weakened the government . They will reduce interest rates if the economy weakens. They slashed profit growth forecasts yesterday in the face of poor sales and weakening consumer spending .
STOCK MARKET, FINANCE if markets , investments , etc. weaken, or if something weakens them, they fall in value : weaken against sth Sterling might weaken against the euro if the dollar does. The shares weakened 2.5p to 225.25p. German producer prices weakened in July .
(Definition of weaken verb from the Cambridge Business English Dictionary © Cambridge University Press)
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