We found 7 dictionaries that define the word quack-quack:

General (7 matching dictionaries)

1. quack-quack, quack-quack: Collins English Dictionary
2. quack-quack: Vocabulary.com
3. quack-quack: Dictionary.com
4. quack-quack: Rhymezone
5. quack-quack: FreeDictionary.org
6. quack-quack: Mnemonic Dictionary
7. quack-quack: TheFreeDictionary.com

Definitions from WordNet (quack-quack) ▸ noun:  child's word for a duck ▸ Words similar to quack-quack ▸ Usage examples for quack-quack ▸ Idioms related to quack-quack ▸ Wikipedia articles (New!) ▸ Popular adjectives describing quack-quack ▸ Words that often appear near quack-quack ▸ Rhymes of quack-quack ▸ Invented words related to quack-quack