Third-person singular simple present indicative form of prepay.(verb)
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Use "prepaying" in a sentence
"But the idea of prepaying debt at a premium to the taxpayers makes no sense to do that."
"The problem with the concept of "prepaying", as Greenspan learned, is that additional goverment revenues lead to future expenditure increases that are greater than the increase in revenue!"
"They are, in effect, 'prepaying' their medical care so when they go to the doctor they only have to pay a trivial co-payment."