so long

interjection

sō-ˈlȯŋ How to pronounce so long (audio)
sə-
—used to express farewell

Word History

Etymology

origin unknown

First Known Use

1854, in the meaning defined above

Time Traveler
The first known use of so long was in 1854

Dictionary Entries Near so long

solonetz

so long

so long as

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Cite this Entry

“So long.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/so%20long. Accessed 21 Nov. 2024.

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Kids Definition

so long

interjection
sō-ˈlȯŋ How to pronounce so long (audio)
—used to express good-bye or farewell
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