"foreign speech," 1660, possibly a corrupt form of lingua franca (q.v.), or from Prov. lingo "language, tongue," from O.Prov. lenga, from L. lingua "tongue" (see lingual).
n. language; special vocabulary. : When you catch on to the lingo, everything becomes clear.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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Lingo definition
An animation scripting language. [MacroMind Director V3.0 Interactivity Manual, MacroMind 1991].