We found 36 dictionaries that define the word lights:

General (23 matching dictionaries)

1. lights: Merriam-Webster
2. lights: Oxford Learner's Dictionaries
3. lights: American Heritage Dictionary of the English Language
4. lights: Collins English Dictionary
5. Lights, lights: Vocabulary.com
6. Light's, Lights, light's, lights: Wordnik
7. lights: Cambridge Advanced Learner's Dictionary
8. lights: Wiktionary
9. lights: Webster's New World College Dictionary, 4th Ed.
10. lights: The Wordsmyth English Dictionary-Thesaurus
11. lights: Infoplease Dictionary
12. lights: Dictionary.com
13. lights: Online Etymology Dictionary
14. lights: Cambridge Essential American English Dictionary
15. LIGHTS, Lights (Archive album), Lights (BTS song), Lights (Ellie Goulding album), Lights (Ellie Goulding song), Lights (Journey Song), Lights (Journey song), Lights (cigarette type), Lights (musician), Lights (offal), Lights (singer), Lights, The 'Lights (TV show): Wikipedia, the Free Encyclopedia
16. Lights: Online Plain Text English Dictionary
17. lights: Webster's Revised Unabridged, 1913 Edition
18. Lights: Rhymezone
19. Lights: AllWords.com Multi-Lingual Dictionary
20. lights: Webster's 1828 Dictionary
21. lights: FreeDictionary.org
22. lights: TheFreeDictionary.com
23. lights: Wikimedia Commons US English Pronunciations

Art (1 matching dictionary)

24. Natural Magick (No longer online)

Business (3 matching dictionaries)

25. Bouvier's Law Dictionary 1856 Edition (No longer online)
26. Lights: Energy Dictionary
27. Lights: Legal dictionary

Computing (1 matching dictionary)

28. lights: Encyclopedia

Medicine (2 matching dictionaries)

29. lights: Merriam-Webster Medical Dictionary
30. lights: Medical dictionary

Miscellaneous (2 matching dictionaries)

31. LIGHTS: Acronym Finder
32. lights: Idioms

Religion (1 matching dictionary)

33. Lights: Catholic Encyclopedia

Slang (2 matching dictionaries)

34. lights: Green’s Dictionary of Slang
35. LIGHTS: Urban Dictionary

Sports (1 matching dictionary)

36. Lights: Sports Definitions

(Note: See light as well.)

Definitions from Wiktionary (lights) ▸ noun:  The lungs, now chiefly of an animal (being lighter than adjacent parts). Similar: visible light, low-cal, phosphorescent, luminescent, bioluminescent, fluorescent, incandescent, sunlit, light source, floodlit, more... Opposite: darkness, shadows, dimness, obscurity, blackness Types: candle, gas lamp, electric light, fluorescent light, LED, more... Phrases: lights on, bright lights, electric lights, Lights Up, traffic lights, more... Adjectives: electric, bright, red, colored, northern, high, fluorescent, blue, few, white, dim Colors:     white,     yellow,     blue,     red,     green, more... ▸ Word origin ▸ Words similar to lights ▸ Usage examples for lights ▸ Idioms related to lights ▸ Wikipedia articles (New!) ▸ Popular adjectives describing lights ▸ Words that often appear near lights ▸ Rhymes of lights ▸ Invented words related to lights