51Թ

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View synonyms for

so long

interjection

Informal.
  1. goodbye.

    I said so long and left.



so long

  1. informalfarewell; goodbye

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. slangfor the time being; meanwhile

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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51Թ History and Origins

Origin of so long1

An Americanism dating back to 1840–50
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Idioms and Phrases

Good-bye, as in So long, we'll see you next week. The allusion here is puzzling; long presumably means “a long time” and perhaps the sense is “until we meet again after a long time,” but the usage has no such implication. [Colloquial; first half of 1800s]
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Example Sentences

Examples have not been reviewed.

Older hardware works on many modern TVs, so long as they have an aerial connection.

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And it is remarkable that a dispute of this kind should have dragged on for so long.

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But others said they worked so hard and for so long for one reason:

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But what happens when that adventurous girl loses the items that have guided and defined her for so long?

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As the article notes, the official dietary guidelines don’t actually discourage schools from serving items like corn dogs or pizza, so long as they fall within the acceptable ranges for calories, fat, sugar and salt.

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