Since 2005, U.S. ethanol production capacity has more than tripled and now stands at more than 13 billion gallons per year.
Since 1965, mothers at every level of the economy have tripled the hours they spend working outside the home.
Economists praised the move, but the price of fuel and food doubled and tripled almost overnight, setting off nationwide protests.
By 2010, the number of Latinos had tripled in just 30 years, to 50.5 million.
After participating in the first debate, Medina tripled her numbers, surpassing Hutchison in some polls.
According to official data, industrial output more than tripled in the 1960-71 period.
Instead, they had kept to their burrows and, all in good time, had tripled their number.
Now, if he could but devise some scheme for double-crossing Theriere the pleasure and profit of the adventure would be tripled.
In the mean time, let the guards be tripled, and stand to your arms.
It is found that the sum total of the population of all the United States has about tripled in the course of forty years.
late 14c., from Medieval Latin triplare "to triple," from Latin triplus "threefold, triple," from tri- "three" (see tri-) + -plus "-fold." The noun is recorded from early 15c.; the baseball sense is attested from 1880. The adjective is recorded from 1540s.