Definitions:

1. Describes something that is four times the size, quantity, or value of something else. ADJECTIVE
   • The company reported a quadruple increase in sales over the last quarter.
2. Refers to something made up or involving four elements or components. ADJECTIVE
   • A quadruple bypass surgery involves rerouting blood around four blocked arteries in the heart.
3. Refers to the action of increasing something by four times its original value or amount. VERB
   • The city's population is expected to quadruple in the nest 50 years.

Synonyms:

• fourfold
• increase fourfold
• quadruplicate

NearBy Words:

• quadruplet
• quadruplex