Definition of cost (someone) dearly/dear
- Changing your mind now could cost you dearly.
: the amount or equivalent paid or charged for something : price
: the outlay or expenditure (as of effort or sacrifice) made to achieve an object
: loss or penalty incurred especially in gaining something
: to require expenditure or payment
: to require effort, suffering, or loss
: to have a price of
: some person : somebody
: with affection : fondly
: heartily, earnestly
: at a high rate or price
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