0 to make something much more than before; to increase something:
The government, he said, must redouble its efforts to beat crime.
Like the military leaders he wrote about, in the face of overwhelming odds, he redoubled his efforts to achieve his goal: seeing his book published.
This piece rehearses early modern struggles over the female voice in which constraints were defied and then redoubled.
The sudden spread of the lithographic press, and the rise of newspaper and book publishing, redoubled the dynamism of information dissemination in the subcontinent.
These attitudes to human ageing require us to redouble our efforts to avoid old age.
One of the main conclusions of the paper is the need to redouble the efforts to halt human population growth and to eventually reduce it to an optimum.
Comstock redoubled his legislative and publicity efforts during the 1890s and early 1900s.
This fear should be addressed by reassuring dying patients that their pain will be relieved and by redoubling efforts with respect to palliative care to ensure that it is.
Health providers redoubled their efforts to reverse centuries of in-migration and to repatriate rural space with the urban young.