Redoubled vs Redoubles - What's the difference?

As verbs the difference between redoubled and redoubles

is that redoubled is past tense of redouble while redoubles is third-person singular of redouble.

(head)

(redouble)

(redoubl)

To double, especially to double again; to increase considerably; to multiply; to intensify.

Having lost sight of our objectives, we redoubled our efforts.

* 1846 , , Typee , ch. 10:

Every item of intelligence appeared to redouble the astonishment of the islanders, and they gazed at us with inquiring looks.

* 1903 , "Plunder Hidden in Graves," New York Times , 21 Oct., p. 16:

The police redoubled their efforts to capture the thieves.

(bridge, backgammon) To double an opponent's doubling bid.

To become twice as big.

(en noun)

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

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(head)

(redouble)

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