We found 27 dictionaries that define the word laughing:

General (19 matching dictionaries)

1. laughing: Merriam-Webster
2. laughing: Collins English Dictionary
3. laughing: Vocabulary.com
4. Laughing, laughing: Wordnik
5. laughing: Cambridge Advanced Learner's Dictionary
6. laughing: Wiktionary
7. laughing: Webster's New World College Dictionary, 4th Ed.
8. laughing: The Wordsmyth English Dictionary-Thesaurus
9. laughing: Infoplease Dictionary
10. Laughing, laughing: Dictionary.com
11. laughing: Cambridge Essential American English Dictionary
12. Laughing (David Crosby song), Laughing (The Guess Who song), Laughing (disambiguation), Laughing (song), Laughing: Wikipedia, the Free Encyclopedia
13. Laughing: Online Plain Text English Dictionary
14. laughing: Webster's Revised Unabridged, 1913 Edition
15. Laughing: AllWords.com Multi-Lingual Dictionary
16. laughing: Webster's 1828 Dictionary
17. laughing: FreeDictionary.org
18. laughing: Mnemonic Dictionary
19. laughing: TheFreeDictionary.com

Art (1 matching dictionary)

20. Laughing: Cook's Thesaurus

Business (1 matching dictionary)

21. laughing: Legal dictionary

Computing (1 matching dictionary)

22. laughing: Encyclopedia

Medicine (1 matching dictionary)

23. online medical dictionary (No longer online)

Miscellaneous (2 matching dictionaries)

24. Brilliant Dream Dictionary (No longer online)
25. laughing: Idioms

Slang (2 matching dictionaries)

26. laughing: Green’s Dictionary of Slang
27. laughing: Urban Dictionary

(Note: See laugh as well.)

Definitions from Wiktionary (laughing) ▸ noun:  The action of the verb to laugh. Similar: riant, happy, giggling, guffawing, chuckling, smiling, joking, snickering, laughin, crying, more... Opposite: crying, frowning, sobbing, mourning, weeping Types: chuckle, guffaw, snicker, tee-hee, titter, more... Phrases: laughing at, laughing with, laughing matter, laughing stock, laughing gas, more... Adjectives: half, much, loud, pathological, little, hysterical, pathologic, only, busy, uncontrollable, ever Colors:     yellow,     orange,     pink,     lime green,     sky blue, more... ▸ Words similar to laughing ▸ Usage examples for laughing ▸ Idioms related to laughing ▸ Wikipedia articles (New!) ▸ Popular adjectives describing laughing ▸ Words that often appear near laughing ▸ Rhymes of laughing ▸ Invented words related to laughing