| Verb | 1. | redouble - double in magnitude, extent, or intensity; "The enemy redoubled their screaming on the radio" | |
| 2. | redouble - double again; "The noise doubled and redoubled"double, duplicate - increase twofold; "The population doubled within 50 years" | |
| 3. | redouble - make twice as great or intense; "The screaming redoubled"deepen, intensify - become more intense; "The debate intensified"; "His dislike for raw fish only deepened in Japan" | |