Read the dictionary definition of double. All definitions for this word.
1. a base hit on which the batter stops safely at second base
1. he hit a double to deep centerfield
2. raising the stakes in a card game by a factor of 2
1. I decided his double was a bluff
3. a quantity that is twice as great as another
1. 36 is the double of 18
4. someone who closely resembles a famous person (especially an actor)
1. he could be Gingrich's double
2. she's the very image of her mother
5. a stand-in for movie stars to perform dangerous stunts
1. his first job in Hollywood was as a double for Clark Gable
6. increase twofold
1. The population doubled within 50 years
7. hit a two-base hit
8. do double duty; serve two purposes or have two functions
1. She doubles as his wife and secretary
9. make or do or perform again
1. He could never replicate his brilliant performance of the magic trick
10. bend over or curl up, usually with laughter or pain
1. He doubled and vomited violently
11. bridge: make a demand for (a card or suit)
12. having two meanings with intent to deceive
1. a sly double meaning
2. spoke with forked tongue
13. large enough for two
1. a double bed
2. a double room
14. used of homologous chromosomes associated in pairs in synapsis
15. twice as great or many
1. ate a double portion
2. the dose is doubled
3. a twofold increase
16. consisting of or involving two parts or components usually in pairs
1. an egg with a double yolk
2. a double (binary) star
3. double doors
4. dual controls for pilot and copilot
5. duple (or double) time consists of two (or a multiple of two) beats to a measure
17. having more than one decidedly dissimilar aspects or qualities
1. a double (or dual) role for an actor
2. the office of a clergyman is twofold; public preaching and private influence
3. every episode has its double and treble meaning
18. used of flowers having more than the usual number of petals in crowded or overlapping arrangements
1. double chrysanthemums have many rows of petals and are usually spherical or hemispherical
19. to double the degree
1. she was doubly rewarded
2. his eyes were double bright
20. two together
1. some people sleep better double
21. downward and forward
1. he was bent double with pain
