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English definition of “expense”

expense

noun
 
 
/ɪkˈspens/
B2 [C, U] the money that you spend on something: You have to pay your own medical expenses. He eventually found her the car she wanted, at great expense (= it cost him a lot of money).AccountingCosts and expenses
at the expense of sth If you do one thing at the expense of another, doing the first thing harms the second thing: He spent a lot of time at work, at the expense of his marriage.Damaging and spoilingDestroying and demolishing
at sb's expense If you do something at someone's expense, they pay for it: We went on holiday at my father's expense.Costs and expenses in order to make someone look stupid: Stop making jokes at my expense.Embarrassing
(Definition of expense from the Cambridge Learners Dictionary © Cambridge University Press)
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