We found 29 dictionaries that define the word upon:

General (25 matching dictionaries)

1. upon: Merriam-Webster.com
2. upon: Oxford Learner's Dictionaries
3. upon: American Heritage Dictionary of the English Language
4. upon: Collins English Dictionary
5. upon: Vocabulary.com
6. Upon, upon: Wordnik
7. upon: Cambridge Advanced Learner's Dictionary
8. upon: Wiktionary
9. upon: Webster's New World College Dictionary, 4th Ed.
10. upon: The Wordsmyth English Dictionary-Thesaurus
11. upon: Infoplease Dictionary
12. upon, upon (some one): Dictionary.com
13. upon: Online Etymology Dictionary
14. upon: Cambridge Essential American English Dictionary
15. Upon: Wikipedia, the Free Encyclopedia
16. Upon: Online Plain Text English Dictionary
17. upon: Webster's Revised Unabridged, 1913 Edition
18. upon: AllWords.com Multi-Lingual Dictionary
19. upon: Free Dictionary
20. upon: LookWAYup Translating Dictionary/Thesaurus
21. upon: Dictionary/thesaurus
22. upon: Wikimedia Commons US English Pronunciations
23. upon: Webster's 1828 Dictionary

Medicine (1 matching dictionary)

24. online medical dictionary (No longer online)

Miscellaneous (2 matching dictionaries)

25. UPoN: Acronym Finder
26. upon: Idioms

Slang (1 matching dictionary)

27. upon: Urban Dictionary

Opposite: below, beneath, under, underneath, beneath Phrases: depends upon, dependent upon, called upon, depend upon, depending upon, more... Adjectives: agreed, remarks, folio, stratford, look, part, newcastle, full ▸ Word origin ▸ Words similar to upon ▸ Usage examples for upon ▸ Idioms related to upon ▸ Wikipedia articles (New!) ▸ Words that often appear near upon ▸ Rhymes of upon ▸ Invented words related to upon