v.
Pronunciation: ( ˌ )r ē - ' d ə -b ə l
Function: transitive verb
Date: 15th century
1 : to make twice as great in size or amount broadly : INTENSIFY , STRENGTHEN
2 a obsolete : to echo back b archaic : REPEAT
intransitive verb
1 : to become redoubled
2 archaic : RESOUND
3 : to double an opponent's double in bridge
– redouble noun