We found 38 dictionaries that define the word sonar:

General (23 matching dictionaries)

1. sonar: Longman Dictionary of Contemporary English
2. sonar: Merriam-Webster
3. sonar: Oxford Learner's Dictionaries
4. sonar: American Heritage Dictionary of the English Language
5. sonar: Collins English Dictionary
6. sonar: Vocabulary.com
7. Sonar, sonar: Wordnik
8. sonar: Cambridge Advanced Learner's Dictionary
9. SONAR, sonar: Wiktionary
10. sonar: Webster's New World College Dictionary, 4th Ed.
11. sonar: The Wordsmyth English Dictionary-Thesaurus
12. sonar: Infoplease Dictionary
13. sonar: Dictionary.com
14. sonar: Online Etymology Dictionary
15. SONAR (Symantec), SONAR, Sonar (band), Sonar (comics), Sonar (disambiguation), Sonar (keelboat), Sonar (mobile application), Sonar: Wikipedia, the Free Encyclopedia
16. sonar: Rhymezone
17. soar: AllWords.com Multi-Lingual Dictionary
18. SONAR: Stammtisch Beau Fleuve Acronyms
19. sonar: FreeDictionary.org
20. sonar: Mnemonic Dictionary
21. sonar: TheFreeDictionary.com

Computing (1 matching dictionary)

22. sonar: Encyclopedia

Miscellaneous (2 matching dictionaries)

23. SONAR: Acronym Finder
24. AbbreviationZ (No longer online)

Science (3 matching dictionaries)

25. Archaeology Wordsmith (No longer online)
26. Sonar: Eric Weisstein's World of Physics
27. Sonar: Underwater Archaeology Glossary

Slang (1 matching dictionary)

28. Sonar: Urban Dictionary

Tech (8 matching dictionaries)

29. sonar: Webster's New World Telecom Dictionary
30. SONAR: GEOGRAPHIC INFORMATION SYSTEMS, CARTOGRAPHY, AND REMOTE SENSING
31. sonar: Electronics
32. DOD Dictionary of Military Terms (No longer online)
33. Lake and Water Word Glossary (No longer online)
34. Space and Electronic Warfare Lexicon (No longer online)
35. Chemical Fact Sheet (No longer online)
36. SeaTalk Dictionary of English Nautical Language (No longer online)

(Note: See sonars as well.)

Definitions from Wiktionary ( ) ▸ noun:  (nautical) echolocation ▸ noun:  (nautical) A device that uses hydrophones (in the same manner as radar) to locate objects underwater. ▸ noun:  Acronym of sound navigation and ranging. Similar: ASDIC, echo sounder, echosounder, sounder, echo sounding, depth sounder, echosounding, sofar, Doppler sonar, soundome, more... Opposite: radar, lidar, echolocation Types: active, passive, multibeam, wide-beam, side-scan, more... Phrases: active sonar, passive sonar, Doppler sonar, dipping sonar, side scan sonar, more... Adjectives: active, scan, passive, looking, range, high, variable, underwater, submarine, synthetic, depth Colors:     ultramarine,     teal,     aqua,     turquoise,     cerulean, more... ▸ Word origin ▸ Words similar to sonar ▸ Usage examples for sonar ▸ Idioms related to sonar ▸ Wikipedia articles (New!) ▸ Popular adjectives describing sonar ▸ Words that often appear near sonar ▸ Rhymes of sonar ▸ Invented words related to sonar