We found 11 dictionaries that define the word sixty-eight:

General (10 matching dictionaries)

1. sixty-eight: Merriam-Webster
2. sixty-eight: Vocabulary.com
3. Sixty-eight, sixty-eight: Wordnik
4. sixty-eight: Wiktionary
5. sixty-eight: Infoplease Dictionary
6. sixty-eight: Dictionary.com
7. sixty-eight: Rhymezone
8. sixty-eight: FreeDictionary.org
9. sixty-eight: Mnemonic Dictionary
10. sixty-eight: TheFreeDictionary.com

Slang (1 matching dictionary)

11. Sixty-eight: Urban Dictionary

Definitions from WordNet (sixty-eight) ▸ adjective:  being eight more than sixty Types: year, Buddhist year, school year, lunar year, solar year, sidereal year, more... ▸ Words similar to sixty-eight ▸ Usage examples for sixty-eight ▸ Idioms related to sixty-eight ▸ Wikipedia articles (New!) ▸ Popular nouns described by sixty-eight ▸ Words that often appear near sixty-eight ▸ Rhymes of sixty-eight ▸ Invented words related to sixty-eight