WordWeb Online

1. Increase by a factor of two
   "doubling with a computer took no time at all"
    
2. Raising the stakes in a card game by a factor of 2
   "I decided his doubling was a bluff"
   - double

1. Increase twofold
   "The population doubled within 50 years"
   - duplicate
    
2. Hit a two-base hit
    
3. Bend over or curl up, usually with laughter or pain
   "He doubled and vomited violently"; "He doubled over and vomited violently"
   - double over, double up
    
4. Do double duty; serve two purposes or have two functions
   "She doubles as his wife and secretary"
    
5. (bridge) make a demand for (a card or suit)
    
6. Make or do or perform again
   "He could never double his brilliant performance of the magic trick"
   - duplicate, reduplicate, repeat, replicate

Derived forms: doublings

See also: double up

Type of: bend, bid, call, flex, function, go, hit, manifold, multiplication, multiply, operate, raise, reproduce, run, work

Part of: card game, cards

Encyclopedia: Double, Double Double Double, Double, Boy in Trouble Double, Triple, and Quadruple Eagles Double, Double, Toil and Trouble