We found 9 dictionaries that define the word June 21:

General (7 matching dictionaries)

1. June 21: Vocabulary.com
2. june 21: Dictionary.com
3. June 21: Rhymezone
4. june 21: FreeDictionary.org
5. june 21: Mnemonic Dictionary
6. June 21, June 21: TheFreeDictionary.com

Computing (1 matching dictionary)

7. June 21: Encyclopedia

Slang (1 matching dictionary)

8. June 21: Urban Dictionary

Definitions from Wikipedia (June 21) ▸ noun:  June 20 - Eastern Orthodox Church calendar - June 22 Opposite: December 21, winter solstice ▸ Words similar to June 21 ▸ Usage examples for June 21 ▸ Idioms related to June 21 ▸ Wikipedia articles (New!) ▸ Words that often appear near June 21 ▸ Rhymes of June 21 ▸ Invented words related to June 21