Quadruple

Part of speech: noun (n.)

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

Part of speech: verb (v.)

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

Part of speech: verb (v.)

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

Part of speech: adjective (a.)

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