Webster's Revised Unabridged Dictionary · 1913

Quadruple

Quadruple , adjective

[Latin quadruplus, from quattuor four: compare French quadruple. See Quadrate, and compare Double.]

Fourfold; as, to make quadruple restitution; a quadruple alliance.
Collocations (1)
Quadruple time (Music) , that in which each measure is divided into four equal parts.

Quadruple , noun

[Compare French quadruple, Latin quadruplum.]

four times the sum or number; a fourfold amount; as, to receive to quadruple of the amount in damages.

Quadruple , transitive verb

[Latin quadruplare: compare French quadrupler.]

To multiply by four; to increase fourfold; to double; to double twice. — A. Smith

Quadruple , intransitive verb

To be multiplied by four; to increase fourfold; to become four times as much.