harden Meaning in the Cambridge English Dictionary
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Meaning of “harden” in the English Dictionary

"harden" in British English

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hardenverb [I or T]

uk   /ˈhɑː.dən/  us   /ˈhɑːr-/

harden verb [I or T] (SOLID)

to ​become or make hard: The ​mixture hardens as it ​cools. It is ​thought that high ​cholesterollevels in the ​blood can harden the ​arteries (= make them ​thicker and ​stiffer, ​causingdisease).

harden verb [I or T] (SEVERE)

to ​become more ​severe, ​determined, or ​unpleasant: Living in the ​desert hardened the ​recruits (= made them more ​strong and ​determined). As the ​warprogressed, ​attitudes on both ​sides hardened (= ​became more ​severe and ​determined).
hardening
noun [U or S] uk   us   /-ɪŋ/
There has been a hardening of ​governmentpolicy since the ​invasion.
(Definition of harden from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"harden" in American English

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hardenverb [I/T]

 us   /ˈhɑr·dən/

harden verb [I/T] (MAKE SEVERE)

to make or ​becomestronger or more ​severe: [I] As the ​war progressed, ​attitudes on both ​sideshardened.

harden verb [I/T] (BECOME SOLID)

to ​becomefirm or ​solid, or to ​cause something to ​becomefirm or ​solid: [I] In a few ​hours the ​cement will harden.
(Definition of harden from the Cambridge Academic Content Dictionary © Cambridge University Press)

"harden" in Business English

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hardenverb [I]

uk   us   /ˈhɑːdən/ UK FINANCE, STOCK MARKET
if ​prices or ​shareprices harden, they ​increase: If the ​oilprice hardens this week and remains high, there will be some ​effect on ​fuelprices by the end of this week. The ​pharmaceuticalscompany hardened 33p at £26.07 on ​speculation of ​predatoryinterest from a Swiss ​firm.
(Definition of harden from the Cambridge Business English Dictionary © Cambridge University Press)
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