WordWeb Online

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

1. A base hit on which the batter stops safely at second base
   "he hit a double to deep centerfield";
   - two-base hit, two-bagger, two-baser
    
2. A stand-in for movie stars to perform dangerous stunts
   "his first job in Hollywood was as a double for Clark Gable";
   - stunt man, stunt woman
    
3. Someone who closely resembles a famous person (especially an actor)
   "he could be Gingrich's double";
   - image, look-alike
    
4. A quantity that is twice as great as another
   "36 is the double of 18"
    
5. Raising the stakes in a card game by a factor of 2
   "I decided his double was a bluff";
   - doubling
    
6. A room (e.g. in a hotel) with a double bed
   "Do you have a double for tonight?";
   - double room

1. Having more than one decidedly dissimilar aspects or qualities
   "a double role for an actor"; "every episode has its double and treble meaning";
   - dual, twofold, two-fold, treble, threefold, three-fold, trifold
    
2. Consisting of or involving two parts or components usually in pairs
   "an egg with a double yolk"; "a double (binary) star"; "double doors"; "duple (or double) time consists of two (or a multiple of two) beats to a measure";
   - dual, duple
    
3. Twice as great or many
   "ate a double portion";
   - doubled, twofold, two-fold, bifold
    
4. Large enough for two
   "a double bed"; "a double room"
    
5. Having two meanings with intent to deceive
   "a sly double meaning";
   - forked
    
6. (botany) used of flowers having more than the usual number of petals in crowded or overlapping arrangements
   "double chrysanthemums have many rows of petals and are usually spherical or hemispherical"
    
7. (genetics) used of homologous chromosomes associated in pairs in synapsis
   - bivalent

1. Downward and forward
   "he was bent double with pain"
    
2. Two together
   "some people sleep better double"
    
3. To double the degree
   "his eyes were double bright";
   - doubly, twice

Derived forms: doubling, doubled, doubles

See also: ambiguous, big, equivocal, large, multiple, parlay, valence, valency

Type of: backup, backup man, base hit, bend, bid, call, fill-in, flex, function, go, hit, individual, manifold, mortal, multiple, multiply, operate, person, raise, relief, reliever, reproduce, run, safety, somebody, someone, soul, stand-in, substitute, work

Antonym: multivalent, single, univalent

Part of: card game, cards

Encyclopedia: Double, Double, Toil and Trouble