Third-person singular simple present indicative form of redouble.(verb)
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Use "redoubles" in a sentence
"And a safe within a safe redoubles the grimnoire quality of it all."
"Silver trades at a vast discount to gold prices, which redoubles its allure to price-conscious investors looking to guard their wealth from market uncertainty."
""I'm sorry to see him affected by this; it only redoubles my resolve to improve on the treatments we have.""