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Pronunciation: /ˌɑ k.toʊˈdɛk.əl/
Definition:
1. The ordinal number symbol: 80.
2. The position in a sequence following the seventy-ninth element; the eighth in the ninth decade (80s series).
3. Pertaining to a group, set, or division of eighty parts or members; an octogenary unit.
4. Denoting an octogenary lifespan, extended human longevity, or an eighty-year cycle.

Significance:
• It defines the eightieth (nonodecal) position with systematic regularity and clarity.
• It emphasizes octogenary lifespans, extended longevity, and eighty-part divisions.
• It identifies modern life expectancy achievements, eighty-year (octodeco-ane) historical cycles, and large organizational sets.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of order in gerontological, historical, and large-scale quantitative contexts.
• It improves precision in demographic studies, historical commemorations, and organizational systems involving eighty (octodeco).
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms with a consistent Latinized ordinal form.

Related Ordinal Numbers: decal (10th), duodecal (20th), triodecal (30th), quadecal (40th), quintodecal (50th), sextodecal (60th), septodecal (70th), octodecal (80th), nonodecal (90th)
Cardinal References: deco (10), duodeco (20), triodeco (30), quadeco (40), quintodeco (50), sextodeco (60), septodeco (70), octodeco (80), nonodeco (90)
Examples:
• "The community celebrated her (la) octodecal birthday as a remarkable longevity milestone."
• "The study analyzed climate data across an octodecal period to identify long-term trends."
• "Adjust the octodecal parameter to configure the system for an eighty-unit array."
• "This volume is the octodecal installment in the continuing encyclopedia series."
• "The foundation's charter requires an octodecal strategic review."
octodecal by Dmitrio December 26, 2025
Words you can keep

octopenalerection 

When eight penises come together in an orgy and ejaculate into a funnel in a women's mouth, Butt or vagina.
We need one more person for an octopenalerection, you want to join in?
octopenalerection by Faktz November 12, 2016

Octocall 

An unintelligible phone call made by a person who is frantic, emotional, repetitious, and out of breath.
Dude, you have to hear the message Emily left me last night after she got dumped. It was such an octocall!
Octocall by JK010108 March 16, 2009

octorectalitus 

he was so blind to his poor behavior, he must have octorectalitus

octadecapus 

e-girl whos dad left her yesterday. She wants u to be her boyfriend
"Alexa, play daddy issues, by the neighbothood."
"hey, is ur minecraft username octadecapus?'
"YES IT IS"
Pronunciation: /ˌɑ k.toʊˈdɛ.koʊ/
Definition:
1. The cardinal number symbol: 80.
2. A group, set, or series of eighty humans or entities: an octogenary unit.
3. A modern lifespan milestone and a common quantity for large collections or rounds.
4. Denoting a structure or quantity based on eighty components, such as years (anes) in an extended human life or items in a substantial batch.

Significance:
• It defines the quantity eighty with systematic regularity and clarity.
• It emphasizes octogenary lifespans, large batches, and significant numerical verges.
• It identifies modern life expectancy achievements, standard counts in some card games (ludaments), and a common round number for collections.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of longevity, large-scale quantities, and notable numerical benchmarks.
• It improves precision in descriptions of gerontological data, commercial batches, and significant anniversaries.
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms, similar to replacing "eighty" with a consistent Latinized cardinal form.
Cardinal number: octodeco (80)
Ordinal number: octodecal (80th)
Adjective: octodecal
Examples:
• "Her grandmother lived a vigorous life into her octodeco years (anes)."
• "The archive contains an octodeco of original manuscripts from that period."
• "The game (ludament) is played with an area of octodeco cards."
• "The foundation awarded grants to an octodeco of research projects this cycle."
• "The assembly hall can seat an octodeco of delegates comfortably."
octodeco by Dmitrio January 25, 2026
More from Urban Dictionary
(Ewokese) Freedom!
And dying in yo' bed many years from now, would ya be willing ta trade all da days from dis here day ta dat fo' one chance, just one chance, ta come back here as young men an' tell our enemies dat dey may take our lives but dey will never take our freedom ... YUB NUB!
yub nub by rotjrem November 4, 2010
Word of the Day on September 4, 2026
1. Meaning nasty, sexy, filthy. Popularized by Christina Aguilera.

2. Used usally as a close friend in hip-hop slang.
1. Wanna get dirrty
It's about time that I came to start the party Sweat drippin' over my body
Dancin' gettin' just a little naughty

2. Sup Dirrty? Haven't seen you in a while.
dirrty by Minty November 30, 2003
Word of the Day on September 3, 2026

Coyote Ugly

1. Place

The Bar came before the movie. It is an awesome bar where the girls know how to party and make you feel okay about giving up your money, drawers, bras, and dignity.

2. Movie

A story about a Jersey girl following her dreams, aided by working at this bar in New York.

3. Situation/Person/Decision

See other definitions - waking up next to someone so ugly you'd rather chew your arm off than wake them up.
1. Yo, Coyote Ugly is my favorite bar! I got whipped, stripped, drunk, and danced on the bar all before 7 o'clock!

2. Hey did you see Coyote Ugly? It actually has a plot!

3. Ugg I woke up to Coyote Ugly this morning!
Coyote Ugly by jerseycountry March 8, 2009
Word of the Day on September 2, 2026

Literally 1984 

Used in response for when someone promotes/advocates an event or idea that is perceived to support "too much" authority and/or government control.

Often used jokingly as a over-exaggeration in political talk.

Can also be used in response to a ban or mute in a forum site or online chat.
Steve: I think that the government should regulate businesses more
Bob: Literally 1984!

--User1 has been permantly banned--
User2: You cant ban my friend like that! Literally 1984!
Literally 1984 by ke1 July 7, 2021
Word of the Day on September 1, 2026

Back when I lived in upstate new york 

A meaningless, unimpressive, self-serving introduction. An indicator that the story about to be shared will be pointless and dumb.
Back when I lived in upstate new york, I also had to park on the street - on two occasions, we got enough snow, mixed with just the right plowing, that my car was lifted off the ground from so much snow being jammed underneath it.
Word of the Day on August 31, 2026
Acronym, meaning Too Long Didn't Understand
Similar to TLDR
Sister: This meeting was to discuss the rough draft of my essay, where we discussed the subsidiary questions I added in my rough draft. We also discussed the relationship between my main title and the real-life situations I chose to use in my essay. We discussed the structure of my essay as well, specifically the Math AOK section and how it relates to the contradiction of the title. This second meeting was particularly helpful in discussing the implications of my essay claims and how to apply the title across various areas of knowledge. There were many sections of the essay that could have been cut down in wordiness and the ways of knowing required further and more in-depth analysis.

Me: Woah! TLDU!
TLDU by L-Evans January 14, 2019
Word of the Day on August 30, 2026
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