Simple past tense and past participle of quintuple.(verb)
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Use "quintupled" in a sentence
"Since, sentencing rates have "quintupled," for-profit prison stocks have boomed, rehabilitation resources have dwindled, and a "collapse of resistance" has seized activists and concerned citizens once outraged enough to topple the system of incarceration entirely. michelle alexander"
"Liquidity is draining away: Bid-offer spreads on French 10-year bonds have quintupled to 0.5 percentage point versus the first half of this year, according to Tradeweb data."
"The number of Venezuelans living in Spain has quintupled in the same period to more than 40,000, and the number of Venezuelan-born Spaniards has more than doubled to 90,000."