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Twelve (12). Used, as an alternate word, by those who wish to rid the English-speaking number system of remnants of an extinct base-12 number system and de-anomalise the ubiquitous base-10 (decimal) system.

See firsteen
"Seconteen months hath one year", quoth Wittingstein. "And twice seconteen maketh one day", addeth Kant. "Of that we can both be sure!"
by Tom Christmas February 18, 2004
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