We found 7 dictionaries that define the word on cloud nine:

General (6 matching dictionaries)

1. on cloud nine: Merriam-Webster
2. on cloud nine: Oxford Learner's Dictionaries
3. on cloud nine: Collins English Dictionary
4. on cloud nine: Wiktionary

Miscellaneous (1 matching dictionary)

5. on cloud nine: Idioms

Phrases: be on cloud nine, more... ▸ Words similar to on cloud nine ▸ Usage examples for on cloud nine ▸ Idioms related to on cloud nine ▸ Wikipedia articles (New!) ▸ Words that often appear near on cloud nine ▸ Rhymes of on cloud nine ▸ Invented words related to on cloud nine