Old Faithful

geographical name

Definition of Old Faithful

  1. geyser that erupts at regular intervals in Yellowstone National Park in northwestern Wyoming


Learn More about old faithful


Seen and Heard

What made you want to look up Old Faithful? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to glide in or as if in an airplane

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!