We found 19 dictionaries that define the word whooper:

General (16 matching dictionaries)

1. whooper: Merriam-Webster
2. whooper: Oxford Learner's Dictionaries
3. whooper: American Heritage Dictionary of the English Language
4. whooper: Collins English Dictionary
5. whooper: Vocabulary.com
6. whooper: Wordnik
7. whooper: Wiktionary
8. whooper: Infoplease Dictionary
9. whooper: Dictionary.com
10. Whooper: Online Plain Text English Dictionary
11. whooper: Webster's Revised Unabridged, 1913 Edition
12. whooper: Rhymezone
13. Whooper: AllWords.com Multi-Lingual Dictionary
14. whooper: FreeDictionary.org
15. whooper: Mnemonic Dictionary
16. whooper: TheFreeDictionary.com

Computing (1 matching dictionary)

17. whooper: Encyclopedia

Medicine (1 matching dictionary)

18. online medical dictionary (No longer online)

Slang (1 matching dictionary)

19. whooper: Urban Dictionary

(Note: See whoopers as well.)

Definitions from Wiktionary (whooper) ▸ noun:  A person or animal that whoops. ▸ noun:  The whooping crane, Grus americana. ▸ noun:  The whooper swan, Cygnus cygnus. Similar: whooper swan, cygnus cygnus, walloper, whapper, scooper, whacker, howler, oinker, whorer, booer, more... Opposite: whisper, silence, quiet Types: whooper swan, trumpeter swan, whistling swan, black swan, mute swan, more... Phrases: whooper swan, whooper swans, more... ▸ Words similar to whooper ▸ Usage examples for whooper ▸ Idioms related to whooper ▸ Wikipedia articles (New!) ▸ Popular adjectives describing whooper ▸ Words that often appear near whooper ▸ Rhymes of whooper ▸ Invented words related to whooper