We found 16 dictionaries that define the word Valentine's Day:

General (14 matching dictionaries)

1. Valentine's Day: Merriam-Webster
2. Valentine's Day: Oxford Learner's Dictionaries
3. Valentine's Day: American Heritage Dictionary of the English Language
4. Valentine's day, Valentine's day: Collins English Dictionary
5. Valentine's Day: Vocabulary.com
6. valentines-day: Wordnik
7. Valentine's Day, Valentine's day: Cambridge Advanced Learner's Dictionary
8. Valentine's Day: Wiktionary
9. Valentines Day, valentine's day: Dictionary.com
10. Valentine's Day, Valentine's Day (David Bowie song), Valentine's Day (TV series), Valentine's Day (The Office), Valentine's Day (disambiguation), Valentine's Day (soundtrack), Valentines Day (album), Valentine's day, Valentines day: Wikipedia, the Free Encyclopedia
11. Valentine's day: Rhymezone
12. valentines day: FreeDictionary.org
13. valentine's day: Mnemonic Dictionary
14. Valentine's Day, Valentines Day: TheFreeDictionary.com

Computing (1 matching dictionary)

15. Valentine's Day, Valentines Day: Encyclopedia

Miscellaneous (1 matching dictionary)

16. Valentine's Day: Holidays Around the World

Definitions from Wiktionary (Valentine's Day) ▸ noun:  Saint Valentine's Day. ▸ noun:  (bingo) Fourteen. Phrases: saint valentines day, st valentines day, st valentines day massacre, more... ▸ Words similar to Valentine's Day ▸ Usage examples for Valentine's Day ▸ Idioms related to Valentine's Day ▸ Wikipedia articles (New!) ▸ Words that often appear near Valentine's Day ▸ Rhymes of Valentine's Day ▸ Invented words related to Valentine's Day