We found 27 dictionaries that define the word high speed:

General (19 matching dictionaries)

1. high-speed: Merriam-Webster
2. high-speed: Oxford Learner's Dictionaries
3. high-speed: American Heritage Dictionary of the English Language
4. high-speed, high-speed: Collins English Dictionary
5. high-speed: Vocabulary.com
6. High-Speed, High-speed, high-speed: Wordnik
7. high-speed: Cambridge Advanced Learner's Dictionary
8. high-speed: Wiktionary
9. high-speed: Infoplease Dictionary
10. high-speed, high speed: Dictionary.com
11. high-speed: Cambridge Essential American English Dictionary
12. High Speed (pinball), High Speed (video game): Wikipedia, the Free Encyclopedia
13. high-speed: Mnemonic Dictionary
14. High Speed, high-speed: TheFreeDictionary.com
15. high-speed: Rhymezone
16. high-speed: FreeDictionary.org
17. high speed: Longman Dictionary of Contemporary English

Art (1 matching dictionary)

18. ODLIS: Online Dictionary of Library and Information Science (No longer online)

Business (2 matching dictionaries)

19. High Speed: Legal dictionary
20. High Speed: Financial dictionary

Computing (2 matching dictionaries)

21. High Speed: Encyclopedia
22. high-speed: Netlingo

Medicine (1 matching dictionary)

23. High Speed: Medical dictionary

Slang (1 matching dictionary)

24. high speed: Urban Dictionary

Tech (1 matching dictionary)

25. high-speed: Webster's New World Telecom Dictionary

Definitions from Wiktionary (high speed) ▸ noun:  A speed having a large magnitude: great velocity. ▸ adjective:  Alternative form of high-speed [That operates, moves or takes place at a greater than normal speed.] Similar: fast, hyperspeed, superspeed, overspeed, full throttle, speeding ticket, overacceleration, hyperflow, speed reading, speeding, more... Opposite: slow, low speed, sluggish, leisurely Types: Mach 1, Mach 2, Mach 3, Mach 4, Mach 5, more... Phrases: high speed steel, high speed serial interface, high speed circuit switched data, duplex high speed data, high speed connect, more... ▸ Words similar to high speed ▸ Usage examples for high speed ▸ Idioms related to high speed ▸ Wikipedia articles (New!) ▸ Popular nouns described by high speed ▸ Words that often appear near high speed ▸ Rhymes of high speed ▸ Invented words related to high speed