What is the meaning of so long?

noun

WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). so long. Retrieved September 20, 2026, from http://smartdefine.org/so_long/definitions/1311564
ChicagoWordNet. 2010. "so long" http://smartdefine.org/so_long/definitions/1311564 (accessed September 20, 2026).
HarvardWordNet 2010, so long, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/so_long/definitions/1311564>.
MLAWordNet. "so long" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/so_long/definitions/1311564>