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Pronunciation: /ˌdu .oʊˈdɛ.koʊ/
Definition:
1. The cardinal number symbol: 20.
2. A group, set, or series of twenty humans or entities; a score or vicenary unit.
3. A standard historical counting unit and common quantity for large items.
4. Denoting a structure or system based on twenty components, such as a score in a historical context or a standard batch size.

Significance:
• It defines the quantity twenty with systematic regularity and clarity.
• It emphasizes scores, vicenary systems, and historical counting units.
• It identifies a traditional "score" (as in "four score and seven years (anes)"), standard packs of items, and any grouping of two tens (duo decos).
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of historical quantities, bulk packaging, and vicenary groupings.
• It improves precision in descriptions of historical texts, commercial batches, and base-20 systems.
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms, similar to replacing "twenty" with a consistent Latinized cardinal form.
Cardinal number: duodeco (20)
Ordinal number: duodecal (20th)
Adjective: duodecal
Examples:
• "The historical document referenced a period of four duodeco years (anes)."
• "The manufacturer floating vessels (navas) components in boxes of duodeco."
• "The committee is composed of a duodeco of regional representatives."
• "The game (ludament) is played with a duodeco of special cards."
• "He purchased a duodeco of pencils for the office supply cabinet."
duodeco by Dmitrio January 20, 2026
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I double dog triple frog quadruple hog quintuple log sextuple blog septuple clog octuple old grog nonuple cog decaple flog duodecaple fast jog tredecaple prologue dare you 

the most intense dare ever to be wielded by anyone. cannot back out of it no matter what or chaotic things will happen.
DUDE! I double dog triple frog quadruple hog quintuple log sextuple blog septuple clog octuple old grog nonuple cog decaple flog duodecaple fast jog tredecaple prologue dare you to stick your dick in the blender.

duodecadal 

Relating to one's second decade, aka one's twenties.
1. Ernest attributed Joan's disquieting behavior to duodecadal melancholia.

2. “Scarlet just radiates that duodecadal sexual energy. Man I just want to f*ck that b*tch like no ones' business!”

3. “Holy sh*t, that 70 year old son-of-a-b*tch just f*cked that duodecadal slut! Dude, he got lucky as f*ck. No way he did it sober, he must’ve gotten her sh*tface or payed that thot bazillions for how God damned ugly he is.”
duodecadal by Mous, Anon Y. December 2, 2019

Duodecimquinquagintanovemphobia 

The fear of the time 12:59 specifically. No other time, just 12:59. (Could be due to it being a strange time)
Brad: What time is it?
Charles: Uh, I think it's 12:59
Brad: OHH GOD!

Charles: What's wrong??
Brad: Sorry, I have Duodecimquinquagintanovemphobia.
Charles: How did you say that?
Brad: Slowly.

dudecootch 

"Yo Chaco, I think that girl in the blue is a lezbo..? Shea smelled that Dudecootch from outside!
dudecootch by CHACONESS January 1, 2010

dudecore 

kids that think they're the epitome of hardcore.
"brah look at all those kids standing over there, they think theyre so hardcore. "
"yah brah, good thing that we're the original founders hardcore, it makes us so dudecore."
"yahbrah"
dudecore by tiffanibobiffani April 29, 2007

Duodecillion 

N. One followed by 39 zeros.
I have a duodecillion dollars!
Duodecillion by Demtane November 15, 2019