Englishfor English speakers
transaction
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noun
(= dealing, dealings)
the act of transacting within or between groups (as carrying on commercial activities)
no transactions are possible without him
he has always been honest is his dealings with me
cost
Noun
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The cost of something is the price that a person pays for it.
What is the cost of the car?
cost
Verb
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When you say that a thing costs, you say that one must pay in order to buy it.
That diamond ring costs a great deal of money.
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One may say that an action costs a certain bad result.
It cost me my job when I broke the machine.
To commit a crime will cost you.
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When you estimate a cost or set a cost, you cost a thing.
The repair man costed the work to fix the car.