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Noun: doubling  dú-b(u-)ling
  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
Verb: double  dú-bul
  1. Increase twofold
    "The population doubled within 50 years";
    - duplicate
  2. (baseball) hit a two-base hit
  3. Bend over or curl up, usually with laughter or pain
    "He doubled 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, 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: Doubling

Double, Double, Toil And Trouble