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We found 73 dictionaries with English definitions that include the word speed:
Click on the first link on a line below to go directly to a page where "speed" is defined.

General dictionaries General (36 matching dictionaries)
  1. speed: Merriam-Webster.com [home, info]
  2. speed, speed: Oxford Learner's Dictionaries [home, info]
  3. speed: American Heritage Dictionary of the English Language [home, info]
  4. speed: Collins English Dictionary [home, info]
  5. speed: Vocabulary.com [home, info]
  6. speed, speed: Macmillan Dictionary [home, info]
  7. Speed, speed: Wordnik [home, info]
  8. speed: Cambridge Advanced Learner's Dictionary [home, info]
  9. Speed, speed: Wiktionary [home, info]
  10. speed: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. speed: The Wordsmyth English Dictionary-Thesaurus [home, info]
  12. speed: Infoplease Dictionary [home, info]
  13. speed: Dictionary.com [home, info]
  14. speed (n.), speed (v.): Online Etymology Dictionary [home, info]
  15. speed: Cambridge International Dictionary of Idioms [home, info]
  16. SPEED (TV channel), SPEED, Speed (American cable network), Speed (Australian TV network), Speed (Billy Idol song), Speed (Hindi film), Speed (Japanese band), Speed (Japanese group), Speed (Marvel Comics), Speed (Montgomery Gentry song), Speed (Oakwood), Speed (South Korean band), Speed (TV channel), Speed (TV network), Speed (TV series), Speed (band), Speed (card game), Speed (comics), Speed (disambiguation), Speed (drug), Speed (film), Speed (movie), Speed (novel), Speed (ride), Speed (roller coaster), Speed (serial), Speed, The Speed: Wikipedia, the Free Encyclopedia [home, info]
  17. speed: Cambridge International Dictionary of Phrasal Verbs [home, info]
  18. Speed: Online Plain Text English Dictionary [home, info]
  19. speed: Webster's Revised Unabridged, 1913 Edition [home, info]
  20. speed: Rhymezone [home, info]
  21. speed: AllWords.com Multi-Lingual Dictionary [home, info]
  22. speed: Webster's 1828 Dictionary [home, info]
  23. Speed: E Cobham Brewer, The Reader's Handbook [home, info]
  24. SPEED: Stammtisch Beau Fleuve Acronyms [home, info]
  25. Speed: Dictionary of Phrase and Fable (1898) [home, info]
  26. speed: Free Dictionary [home, info]
  27. speed: The Phrontistery - A Dictionary of Obscure Words [home, info]
  28. speed: Mnemonic Dictionary [home, info]
  29. speed: WordNet 1.7 Vocabulary Helper [home, info]
  30. Speed, speed: LookWAYup Translating Dictionary/Thesaurus [home, info]
  31. speed: Dictionary/thesaurus [home, info]
  32. speed: Wikimedia Commons US English Pronunciations [home, info]
  33. speed: Cambridge Dictionary of American English [home, info]
  34. Speed, speed: UltraLingua English Dictionary [home, info]

Art dictionaries Art (2 matching dictionaries)
  1. SPEED: Shakespeare Glossary [home, info]
  2. Speed: Movie Terminology Glossary [home, info]

Business dictionaries Business (6 matching dictionaries)
  1. Speed: MoneyGlossary.com [home, info]
  2. Speed: Bloomberg Financial Glossary [home, info]
  3. Speed: Harvey Financial [home, info]
  4. speed: Legal dictionary [home, info]
  5. Speed: Financial dictionary [home, info]
  6. Speed: WashingtonPost.com: Business [home, info]

Computing dictionaries Computing (3 matching dictionaries)
  1. SPEED: Free On-line Dictionary of Computing [home, info]
  2. speed: Netlingo [home, info]
  3. Speed (drug), speed: Encyclopedia [home, info]

Medicine dictionaries Medicine (5 matching dictionaries)
  1. Speed: MedTerms.com Medical Dictionary [home, info]
  2. Speed (methamphetamine): Merck Manuals [home, info]
  3. SPEED, speed: online medical dictionary [home, info]
  4. Speed (drug), speed: Medical dictionary [home, info]
  5. Speed: Drug Medical Dictionary [home, info]

Miscellaneous dictionaries Miscellaneous (5 matching dictionaries)
  1. SPEED: Navajo Code Talkers' Dictionary [home, info]
  2. Speed: baby names list [home, info]
  3. SPEED: Acronym Finder [home, info]
  4. SPEED: AbbreviationZ [home, info]
  5. speed: Idioms [home, info]

Science dictionaries Science (3 matching dictionaries)
  1. Speed: Eric Weisstein's World of Mathematics [home, info]
  2. Speed: Eric Weisstein's World of Physics [home, info]
  3. SPEED: Zoom Astronomy Glossary [home, info]

Slang dictionaries Slang (2 matching dictionaries)
  1. speed: English slang and colloquialisms used in the United Kingdom [home, info]
  2. Speed: Street Terms: Drugs and the Drug Trade [home, info]

Sports dictionaries Sports (3 matching dictionaries)
  1. Speed: Dan's Poker [home, info]
  2. Speed: Card Games [home, info]
  3. Speed: Sports Definitions [home, info]

Tech dictionaries Tech (8 matching dictionaries)
  1. Speed: AUTOMOTIVE TERMS [home, info]
  2. Speed: Glossary of video terms [home, info]
  3. Speed: Nikonians Photo Glossary [home, info]
  4. Speed: Lake and Water Word Glossary [home, info]
  5. Speed: Dictionary for Avionics [home, info]
  6. Speed: PhotoNotes Dictionary of Film and Digital Photography [home, info]
  7. SPEED: Reliance Electric motor terms [home, info]
  8. speed: SeaTalk Dictionary of English Nautical Language [home, info]

(Note: See speedster for more definitions.)

Quick definitions from Macmillan (
American English Definition British English Definition

Provided by

Quick definitions from WordNet (speed)

noun:  changing location rapidly
noun:  a rate (usually rapid) at which something happens ("The project advanced with gratifying speed")
noun:  distance travelled per unit time
noun:  a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
noun:  the ratio of the focal length to the diameter of a (camera) lens system
verb:  travel at an excessive or illegal velocity ("I got a ticket for speeding")
verb:  move very fast ("The runner zipped past us at breakneck speed")
verb:  cause to move faster
verb:  move faster
verb:  step on it
name:  A surname (rare: 1 in 33333 families; popularity rank in the U.S.: #4015)

▸ Also see speedster
Word origin

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Popular adjectives describing speed

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Phrases that include speed:   speed skating, light speed, speed dating, speed skater, off speed pitch, more...

Words similar to speed:   hie, hurry, swiftness, accelerate, amphetamine, fastness, hasten, hastening, hotfoot, hurrying, quicken, race, rush, sped, speeded, speeder, speeding, speedster, upper, velocity, more...

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