1. consisting of four parts or being four times as much or as many

1. to make or become four times as much or as many

1. an amount that is four times as much as another

Examples

• The company reported quadruple profits this year.
• She ordered a quadruple espresso to stay awake.
• The population is expected to quadruple by 2050.
• Sales quadrupled after the new marketing campaign.
• Twenty is a quadruple of five.
• The recipe calls for a quadruple portion of sugar.
• Housing prices quadrupled in the past decade.