redouble

Etymology
From. .

Verb

 * 1)  To double, especially to double again; to increase considerably; to multiply; to intensify.
 * 2)  To double an opponent's doubling bid.
 * 3)  To become twice as big.
 * 4) To double again what was reduced to a  single state.
 * 1)  To double an opponent's doubling bid.
 * 2)  To become twice as big.
 * 3) To double again what was reduced to a  single state.
 * 1) To double again what was reduced to a  single state.

Noun

 * 1)  An optional bid made by the side currently holding the highest bid for the contract, after the opposing side has doubled.