Simple past tense and past participle of prepay.(verb)
Paid for in advance(adjective)
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Use "prepaid" in a sentence
"BACH: The college savings plan is what we call a prepaid plan."
"The carrier specializes in prepaid wireless voice and data services that offer users less costly alternatives to contract-based postpaid services."
"Despite the growth in prepaid calling as the economy falters, AT&T picked up fewer prepaid subscribers this quarter as compared to the first quarter of [...]"