dou·bly 
/ˈdʌbli/ adverb
always used before an adjective /ˈdʌbli/ adverb 1 : much more than usual or previously : to a much higher degree than usual
▪ We did the test again because we wanted to be doubly [=extra, especially, very] sure the results were accurate. ▪ I had to work doubly [=twice as] hard after my partner left the competition. 2 : in two ways : for two reasons
▪ Her grades and musical talent make her parents doubly proud of her.
▪ We did the test again because we wanted to be doubly [=extra, especially, very] sure the results were accurate. ▪ I had to work doubly [=twice as] hard after my partner left the competition.
▪ Her grades and musical talent make her parents doubly proud of her.
