We found 5 dictionaries that define the word who knows:

General (3 matching dictionaries)

1. who knows: Wiktionary
2. Who Knows (Avril Lavigne song), Who Knows: Wikipedia, the Free Encyclopedia
3. who-knows: Wikimedia Commons US English Pronunciations

Miscellaneous (1 matching dictionary)

4. Who knows: Idioms

Slang (1 matching dictionary)

5. Who knows: Urban Dictionary

Phrases: Who Knows Where the Time Goes?, Ask a Woman Who Knows, one who knows the drill, someone who knows, a person who knows many languages, more... ▸ Words similar to who knows ▸ Usage examples for who knows ▸ Idioms related to who knows ▸ Wikipedia articles (New!) ▸ Words that often appear near who knows ▸ Rhymes of who knows ▸ Invented words related to who knows