KEY: Redouble.
SYN: Augment, multiply, intensify, reiterate.
ANT: Diminish, slacken, weaken, reduce, abate.
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KEY: Redound (followed by the \prep.\ to.
SYN:, Add, result, issue, tend, accrue, contribute, lead, incline, conduce.
ANT: Fail, miss, swerve, nullify, defeat, disappoint, frustrate, injure.
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KEY: Redress.
SYN: Right, order, revise, amend, rectify, remedy, repair.