so long

interjection
\ sō-ˈlȯŋ How to pronounce so long (audio) , sə- \

Definition of so long

used to express farewell

First Known Use of so long

1854, in the meaning defined above

History and Etymology for so long

origin unknown

Keep scrolling for more

Learn More about so long

Time Traveler for so long

Time Traveler

The first known use of so long was in 1854

See more words from the same year

Statistics for so long

Cite this Entry

“So long.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/so%20long. Accessed 28 Sep. 2020.

Comments on so long

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

WORD OF THE DAY

Test Your Vocabulary

Challenging Vocabulary Quiz Returns!

  • stylized drawing of woman pole vaulting across gap to get trophy
  • Which is a synonym of fuliginous?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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