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English definition of “toughen”

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toughen

verb uk   /ˈtʌf.ən/ us  

toughen verb (MAKE STRONG)

[T] to make something or someone tough, strong, or stronger: The UN announced its intentions to toughen sanctions still further. The government wants to toughen (up) the existing drug laws/controls. His time in the army certainly toughened him up. Car windows are usually made from toughened glass.

toughen verb (GET DIFFICULT)

[I] to become difficult to deal with: Amid toughening competition in the market, many firms are going out of business.
(Definition of toughen from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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