Focus on the pronunciation of quadruple
English definition of “quadruple”
quadruple verb [I or T]
› to become four times as much or as many, or to make something four times as much or as many: The stock has more than quadrupled over the last three years. Its share price has quadrupled since going public last June.quadruple to sth Since then, sales have quadrupled to about 10,000 a month.quadruple from sth to sth Sales nearly quadrupled from 4 million gallons a year to 14 million.quadruple in size/value/price During his time at the top, the company quadrupled in size.