Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb redouble
3 senses of redouble
Sense 1
redouble -- (double in magnitude, extent, or intensity; "The enemy redoubled their screaming on the radio")
=> escalate, intensify, step up -- (increase in extent or intensity; "The Allies escalated the bombing")
Sense 2
redouble -- (double again; "The noise doubled and redoubled")
=> double, duplicate -- (increase twofold; "The population doubled within 50 years")
Sense 3
redouble -- (make twice as great or intense; "The screaming redoubled")
=> intensify, deepen -- (become more intense; "The debate intensified"; "His dislike for raw fish only deepened in Japan")