First Known Use: 1854
Dictionary
so long
interjection \sō-ˈlȯŋ, sə-\
Definition of SO LONG
—used to express farewell
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Origin of SO LONG
origin unknown
Rhymes with SO LONG
agelong, along, art song, barong, belong, biltong, birdsong, chaise longue, daylong, ding-dong, diphthong, dugong, endlong, erelong, fight song, folk song, furlong, Geelong, Haiphong, headlong, headstrong, Hong Kong, hour-long, kampong, lifelong, livelong, Mekong, monthlong, nightlong, oblong, oolong, part-song, Ping-Pong, plainsong, prolong, sarong, Shandong, shout song, sidelong, singsong, souchong, swan song, theme song, torch song, weeklong, work song, yearlong
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