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We found 39 dictionaries with English definitions that include the word silly:
Click on the first link on a line below to go directly to a page where "silly" is defined.

General (32 matching dictionaries)

1. silly: Merriam-Webster.com [home, info]
2. silly: Oxford Learner's Dictionaries [home, info]
3. silly: American Heritage Dictionary of the English Language [home, info]
4. silly: Collins English Dictionary [home, info]
5. silly: Vocabulary.com [home, info]
6. silly, silly: Macmillan Dictionary [home, info]
7. Silly, silly: Wordnik [home, info]
8. silly: Cambridge Advanced Learner's Dictionary [home, info]
9. silly: Wiktionary [home, info]
10. silly: Webster's New World College Dictionary, 4th Ed. [home, info]
11. silly: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. silly: Infoplease Dictionary [home, info]
13. silly: Dictionary.com [home, info]
14. silly: Online Etymology Dictionary [home, info]
15. silly: UltraLingua English Dictionary [home, info]
16. silly: Cambridge Dictionary of American English [home, info]
17. silly: Cambridge International Dictionary of Idioms [home, info]
18. Silly (band), Silly (disambiguation), Silly (song), Silly: Wikipedia, the Free Encyclopedia [home, info]
19. Silly: Online Plain Text English Dictionary [home, info]
20. silly: Webster's Revised Unabridged, 1913 Edition [home, info]
21. silly: Rhymezone [home, info]
22. silly: AllWords.com Multi-Lingual Dictionary [home, info]
23. silly: Webster's 1828 Dictionary [home, info]
24. Silly: 1911 edition of the Encyclopedia Britannica [home, info]
25. silly: Free Dictionary [home, info]
26. silly: Mnemonic Dictionary [home, info]
27. silly: WordNet 1.7 Vocabulary Helper [home, info]
28. silly: LookWAYup Translating Dictionary/Thesaurus [home, info]
29. Silly: The Word Detective [home, info]
30. silly: Dictionary/thesaurus [home, info]

Art (1 matching dictionary)

31. SILLY: Shakespeare Glossary [home, info]

Business (1 matching dictionary)

32. silly: Legal dictionary [home, info]

Computing (1 matching dictionary)

33. silly: Encyclopedia [home, info]

Medicine (1 matching dictionary)

34. silly: online medical dictionary [home, info]

Miscellaneous (2 matching dictionaries)

35. SILLY: AbbreviationZ [home, info]
36. silly: Idioms [home, info]

Slang (1 matching dictionary)

37. Silly [Obama], silly, the silly: Urban Dictionary [home, info]

(Note: See silliness for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (silly) ▸ noun:  a word used for misbehaving children ("Don't be a silly") ▸ adjective:  dazed from or as if from repeated blows ("Knocked silly by the impact") ▸ adjective:  inspiring scornful pity ("How silly an ardent and unsuccessful wooer can be especially if he is getting on in years- Dashiell Hammett") ▸ adjective:  pungent adjectives of disesteem ("A silly idea") ▸ adjective:  lacking seriousness; given to frivolity ("Silly giggles") ▸ Also see silliness ▸ Word origin ▸ Words similar to silly ▸ Usage examples for silly ▸ Idioms related to silly (New!) ▸ Popular adjectives describing silly ▸ Popular nouns described by silly ▸ Words that often appear near silly ▸ Rhymes of silly ▸ Invented words related to silly