We found 17 dictionaries that define the word old faithful:

General (14 matching dictionaries)

1. old faithful: Longman Dictionary of Contemporary English
2. Old Faithful: Merriam-Webster
3. Old Faithful: Oxford Learner's Dictionaries
4. Old Faithful: American Heritage Dictionary of the English Language
5. old faithful: Collins English Dictionary
6. Old Faithful: Vocabulary.com
7. Old Faithful: Wiktionary
8. Old Faithful: Infoplease Dictionary
9. old faithful: Dictionary.com
10. Old Faithful (disambiguation), Old Faithful (film), Old Faithful: Wikipedia, the Free Encyclopedia
11. Old faithful: Rhymezone
12. old faithful: FreeDictionary.org
13. old faithful: Mnemonic Dictionary
14. Old Faithful: TheFreeDictionary.com

Computing (1 matching dictionary)

15. Old Faithful: Encyclopedia

Science (1 matching dictionary)

16. Old Faithful: Botanical Name listing of Plants

Slang (1 matching dictionary)

17. Old Faithful, The old faithful: Urban Dictionary

(Note: See old_faithfuls as well.)

Definitions from Wiktionary (Old Faithful) ▸ noun:  A geyser in the American national park of Yellowstone, known for its regular eruptions. Similar: firefall, firefountain, fire hose, fumarole, flareup, fountain, flank eruption, foss, fumerole, fizgig, more... Types: geyser, fumarole, mudpot, solfatara, more... Phrases: Old Faithful Inn, more... Adjectives: alpinist, alpestrine, ree, alpine, subapennine, epicontinental, stokey, inch, hokie, transatlantic, broadway ▸ Words similar to old faithful ▸ Usage examples for old faithful ▸ Idioms related to old faithful ▸ Wikipedia articles (New!) ▸ Words that often appear near old faithful ▸ Rhymes of old faithful ▸ Invented words related to old faithful