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1.
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

Words related to seconteen

firsteen