fifteenth

From Old English fīftēoþa, equivalent to fifteen + -th.

vyftiende

ordinal form of number fifteen — see also 15th

quinze

after the name;in names of monarchs and popes


fifteen

PIE word
 *pénkʷe
From Middle English fiftene, from Old English fīftīene, fīftēne, from Proto-Germanic *fimftehun. Cognate with West Frisian fyftjin, Dutch vijftien, German fünfzehn, Danish femten. Equivalent to five + -teen.

She was, in fact, constitutionally impervious to statistics and preferred to study the be-headphoned group of fifteen or so lethargic wanderers who were taking even less notice of the remorseless squawkings than she was.

1968, Christopher Hodder-Williams, “Hands”, in Fistful of Digits, London: Coronet Books, published 1972, →ISBN, page 125:

The cardinal number occurring after fourteen (14) and before sixteen (16).


quindecagon

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(geometry) A polygon with fifteen sides and fifteen angles.


quinzaine

(poetry) A piece of verse having fifteen syllables.


quindecillion

From Latin quīndec- (“fifteen”) + -illion or quin- + decillion.

Previous: quattuordecillion. Next: sexdecillion.

3 quindecillion, 657 quattuordecillion, 262 tredecillion; which is to say the figures 3,657,262 followed by 42 ciphers. Operators of the key punch machines transfer a code symbol from the Census ….

1946: United States Department of Commerce, The United States Department of Commerce: How it serves you on land and sea and in the air, U. S. Government Printing Office (1946)

One supernova, in 1054, was thought by many to herald the biblical Day of Judgment. We have reached an energy level of 10 quindecillion ergs, or 10⁴⁹ ergs.

1978, D. Wallechinsky, I. Wallace, A. Wallace, The People's Almanac Presents The Book of Lists, Bantam:

(rare, US, modern British and Australia short scale) 10⁴⁸.

(rare, dated, British and Australia, long scale) 10⁹⁰.


quindicessima

From Italian quindicessima, the feminine ordinal form of quindici (“fifteen”).

(music) Two octaves higher. Marking indicates a passage to be transposed up two octaves. Abbreviation: 15ma.


15 minutes of fame

First appears c. 1968, although a use in French appears as early as 1821 in Histoire de l'Assemblée constituante by Charles Lacretelle. Often misattributed to Andy Warhol, in a catalogue of an exhibition of his art in Stockholm: “In the future everyone will be world-famous for 15 minutes.”

[…] Paula [Jones] was, even to her lawyers, a loose cannon—as prepared to risk her marriage and her well-being to get the president to confess his original sin as she was intent on making big money and getting her fifteen minutes of fame.

2007, Nigel Hamilton, Bill Clinton: Mastering the Presidency, New York: PublicAffairs, →ISBN, page 274:

In the next chapter, we'll meet twenty-five hopefuls who have already begun to experience their fifteen minutes of fame as a result of exposure on YouTube.

2008, Frederick Levy, 15 Minutes of Fame: Becoming A Star In The YouTube Revolution, Alpha Books, →ISBN:

By the time we went to Central Park, someone walking in the park said they had just seen us on Fox that morning. It was like being a rock star with a whole fifteen minutes of fame. So it was fun for a time.

2014, Kip Harding, Mona Lisa Harding, chapter 19, in The Brainy Bunch […] , Simon and Schuster, →ISBN, page 188:

After just a month on television, this ordinary chap from Catford, south London, was an overnight superstar, ready to milk his 15 minutes of fame.

2016 January 31, Anna Williamson, “The flip side of instant fame”, in The Guardian:

One day in early January 1970, Michael James Brody Jr. stepped off a Pan Am jet at John F. Kennedy Airport and into what would be one of the new decade’s shortest, strangest 15 minutes of fame.

2022 April 27, Jennifer Schuessler, “An Heir, a $25 Million Giveaway and 30,000 Unopened Letters”, in The New York Times, →ISSN:

(idiomatic) A very short time in the spotlight or brief flurry with fame, after which the person or subject involved is quickly forgotten.


fifteen minutes of fame

en-noun

fifteen minutes of fame pl (plural only)

15 minutes of fame
15 minutes of fame#English


15 minutes

That singer's second single didn't chart; I guess his 15 minutes are almost up.


fiveteen

Taken in clap-nets of fiveteen yards length.

‘I declared that 5 volumes could never be attacked! – but since I begun, I have read it 3 Times.’ ‘O terrible!’ cried I, – ‘to make them fiveteen! – ’

1783, Frances Burney, Journals & Letters, Penguin, published 2001, page 200:


bumfit

From Brythonic numerals (compare Welsh pymtheg), eventually from Proto-Brythonic *pɨmp (“five”) + *deg (“ten”).

(Cumbria) Fifteen in Cumbrian sheep counting.


quindecim

From Medieval Latin quindecima (“15th”), from quindecim (“15”). In reference to 2-week periods, based upon the Roman and medieval practice of counting inclusively.

(chiefly Christianity, archaic) Synonym of quindene, the 14th day after a festival, the fortnight after a festival.


fifteenthly

In the fifteenth place; fifteenth in a row.


fifteener

Not intensely bloody decapitation, but the sort of violence you'd see in a fifteener.

2009 January 24, Interviews by Becky Barnicoat, “Good to meet you: The Jackson children”, in The Guardian:

(UK, informal) A film assigned an age rating of 15, those under 15 not being permitted to view it.

When here and there throughout those volumes you meet with titles of books now either unknown entirely or of the greatest rarity; when you find the Colophon from the end or the "insignum typographi" from the first leaf of a rare "fifteener" pasted down with dozens of others varying in value, you cannot bless the memory of the antiquarian shoemaker, John Bagford.

1880, William Blades, The Enemies of Books, page 97:

(bibliography, informal) A book printed in the 15th century.


quindecuplet

From quindecuple (“times fifteen; composed of 15 parts”) + -et (“forming diminutives”), from Latin quindecim (“fifteen”) + -plus (“-times, -fold”).

suffix

Exercise 11.10. Calculate the multiplicities of the weights in the octet of 𝒮𝒰(3) and in the quindecuplet of 𝒮𝒰(4) according to (11.4.60).

1988, Wolfgang Ludwig, Claus Falter, Symmetries in Physics: Group Theory Applied to Physical Problems, 2nd edition, Springer–Verlag, →ISBN, page 310, →ISBN:

(rare, particle physics) A multiplet of fifteen subatomic particles.


quindecennial

From Latin quindecennialis, from quindecennium (“15-year period”) + -alis (“-al: forming adjs”). Equivalent to quindec- + -ennial.


quindecagonal

en-adj

quindecagonal (comparative more quindecagonal, superlative most quindecagonal)

more quindecagonal (comparative)
most quindecagonal (superlative)

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(geometry) Shaped like a quindecagon; fifteen-sided.


15 megabytes of fame

Culture is your friend who likes to draw[…]. / The web is an opportunity to make good our fifteen megabytes of fame. / The more widespread and grassroots the Internet, the more difficult it will be to dominate and control it.

Even when the time commitment becomes incredible—some would say insane—they argue they’re “compensated” accordingly, whether in pleasure or new knowledge or what Scholz calls their “15 megabytes of fame.”

2015 July 22, Caitlin Dewey, quoting Trebor Scholz, “You don’t know it, but you’re working for Facebook. For free.”, in Washington Post, →ISSN:

(humorous) A modest amount of fame achieved in the world of computing, as by inclusion on a popular video or audio clip available on the Internet.


fifteenness

The fifteenness is unique to the icosahedron and probably valves the 15 great circles of the icosahedron.

1975, Richard Buckminster Fuller, E. J. Applewhite, Synergetics; explorations in the geometry of thinking, Volume 1:

In short, the number fifteen cannot in any manner be separated from its fifteenness.

1986, Shahidullah Faridi, Inner aspects of faith:


fifteenfold

Rodobens, a provincial firm specializing in the lower-middle income bracket, has plans to build 10,000 homes a year over the next four years, a fifteenfold rise on its previous annual total.

2007 July 5, Andrew Downie, “Loan Changes in Brazil Motivate New Buyers and Home Building”, in New York Times:


quindecemvirate

Alternative form of quindecimvirate under the influence of Latin decem &c.


quindecone

(organic chemistry) An unsaturated hydrocarbon related to valylene, probably 2-undecylbut-1-en-3-yne


freshman fifteen

I gained the dreaded "freshman fifteen," whereas Ophi became unnaturally thin from eating too little.

1997, Tali Edut, with Dyann Logwood and Ophira Edut, “HUES Magazine: The Making of a Movement”, in Leslie Heywood, Jennifer Drake, editors, Third Wave Agenda: Being Feminist, Doing Feminism, Minneapolis: University of Minnesota Press, →ISBN, →OL, page 85:

Having gained the regulation freshman fifteen meant that my skirt that day fit.

1999 August 4, Alice Sebold, Lucky, New York: Scribner, →ISBN, →OL, page 37:

The freshman fifteen is the stuff of urban legend — a horror story that wreaks havoc on the psyches of high school seniors everywhere, for fear that it too might touch their lives, leaving them crying in the Sears dressing room shopping for pants two sizes larger.

2012 August 9, Tiana Kupinski, “Getting mean on the Freshman 15”, Sun Belt Collegiate, in Explorer:

(colloquial, US, Canada) The amount of body weight (thought to be 15 pounds) gained by a student during their first year of college.


quindenary

From Latin quindēnārius (“containing fifteen”). Equivalent to quindene + -ary.

der

[…] it and M. Hermite's form ; the latter is intrinsically a quinary group of triadic products, but such representation in the case of M. Joubert's form is purely conventional and confusing, it really being a single indecomposable quindenary product.

1878, James Joseph Sylvester, On an Applicaton of the New Atomic Theory, etc, appendix 1, Remarks on Differentiants expressed in terms of the differences of the roots of their parent quantics, originally published in the American Journal of Mathematics, republished in The Collected Mathematical Papers of James Joseph Sylvester (2008, page 170

[…] or 44 in the quindenary scale.

1945, The American Mathematical Monthly:

Each number had two names: a vowel and a consonant, from which the Reader can already see that they did not use the decimal but the quindenary numerical system.

1975, Sándor Szathmári, Kazohinia, page 52:

Containing fifteen things, or to the base of fifteen.


quindene

From Medieval Latin quindena, from Latin quīndēnī (“15 each”), from the distributive form of quīndecim (“15”). It is used for a period of 14 days owing to the Roman and medieval practice of counting inclusively.

(chiefly Christianity) The 14th day after a festival.


quindecima

From Italian quindecima, from Latin quindecima (“15th”), from quindecim (“15”).

(music) The interval of a fifteenth, a double octave.


double break point

en-noun

double break point (countable and uncountable, plural double break points)

(tennis) A situation in which the receiver has two break points (15-40 using the tennis scoring system)


quindecimvir

quindecimvir (plural quindecimvirs or quindecimviri)

quindecimvirs (plural)
quindecimviri (plural)

From Latin quīndecimvir, from quindecim (“fifteen”) + vir (“man”).

(historical) Any member of an official group of fifteen people, especially a member of the 15-man college of priests who cared for the Sibylline Books in ancient Rome.


quindecimviral

(uncommon) Of or belonging to the quindecimviri or the quindecimvirate.


quindecimvirate

From Latin quīndecimvirātus, from quīndecimvirī (“quinquevirs”) + -ātus (“-ate”).

(uncommon) A group of fifteen people, especially (politics) a council of fifteen men sharing office or rule, particularly such groups of magistrates in ancient Rome.


fifteen megabytes of fame

fifteen megabytes of fame pl (plural only)

15 megabytes of fame
15 megabytes of fame#English

Alternative form of 15 megabytes of fame


pentadecahedron

pentadecahedron (plural pentadecahedra or pentadecahedrons)

pentadecahedra (plural)
pentadecahedrons (plural)

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(geometry) A polyhedron with fifteen faces.


quindecangle

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(obsolete, geometry) Synonym of quindecagon.


quindecile

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quinzieme

(historical) A tax of one fifteenth (0.067%), particularly the excise and customs charged by John of England around 1204.


15-minute city

15-minute city (plural 15-minute cities)

Coined by Colombian-French researcher, scientiste, professor Carlos Moreno.

coin

Notable examples include Paris and its “Ville du quart d'heure,” a 15-minute city based on decentralized, mini-hubs where everything one is likely to need is within a 15-minute walk or bike ride.

2022, Zaheer Allam et al., editors, Resilient and Sustainable Cities: Research, Policy and Practice, Elsevier, →ISBN, page 41:

The 15-minute city, he suggested, was a “dystopian plan”, heralding “a surveillance culture that would make Pyongyang envious”.

2023 February 16, Oliver Wainwright, “In praise of the ‘15-minute city’ – the mundane planning theory terrifying conspiracists”, in The Guardian, →ISSN:

On Feb. 18, when an estimated 2,000 demonstrators converged at a protest in Oxford, some carried signs claiming that 15-minute cities would become “ghettos” created by the World Economic Forum as a form of “tyrannical control.”

2023 March 28, Tiffany Hsu, “He Wanted to Unclog Cities. Now He’s ‘Public Enemy No. 1.’”, in The New York Times, →ISSN:

(urban studies) A city in which most daily necessities and services are located within an easily reachable 15-minute walk or bike ride from any point.


quindecimal

From Latin quindecimalis, from quindecim (“15”) + -ālis (“-al”), from quinque (“5”) + decem (“10”). Equivalent to quindecim + -al.

here the system assumes a quinary, or, perhaps more properly, a quindecimal radix, sixteen being expressed by a word signifying fifteen and one; seventeen, fifteen and two, &c.

1834, Dionysius Lardner, Treatise on Arithmetic, Practical and Theoretical, page 17:


fifteensome

It was one of those magical evenings during which our threesome became a fifteensome, including the pianist and Cuban expatriates from Puerto Rico, Mexico the U.S.

1998, George Jacunski Guiteras, “A Return to Cuba”, in Assembly, volume 57, page 23:

There would be an excellent chance that all of us would be in one hollering, protesting, club-slinking fifteensome, betting $800 million.

2015, Dan Jenkins, The Dogged Victims of Inexorable Fate, Simon & Schuster, →ISBN:

In this week’s episode of “Is it in Yet?”, The Tab’s sex podcast we’ve heard from lots of naughty listeners who’ve somehow ended up having spontaneous threesomes, foursomes, and even – yes – a fifteensome.

2020 March 12, “‘Our first date ended in a foursome’: Group sex stories that actually happened”, in The Tab:

(rare) A group of fifteen people or things.


quindecennalia

en-noun

quindecennalia (plural quindecennalia or quindecennalias)

quindecennalia (plural)
quindecennalias (plural)

From Latin quīndecennālia, from quīndecennium (“15-year period”) + -ālia (“-alia: forming the names of festivals”), from quīndecennis (“15-year”) + -ium (“-ium: forming abstract nouns”). Equivalent to quin- + decennalia, quindec + ennalia, or quindecennium + -alia.

There is evidence, that the quindecennalia, of fifteenth anniversary of Trajan's proconsular authority, and of his adoption to the empire, was celebrated in 111, or the year after Pliny's arrival in Bithynia.

1837, Edward Burton, Lectures upon the Ecclesiastical History of the First Three Centuries..., Vol. II, "Lecture XIV", p. 40

There is good literary evidence for Honorius' tricennalia in 422, which is at the end of perfect quinquennial sequence from 393, as well as consular vot xxx mvlt xxx solidi, though there do not appear to be any vota coins marking his quindecennalia or quinta quinquennalia.

1988, Richard W. Burgess, “Quinquennial Vota and the Imperial Consulship in the Fourth and Fifth Centuries, 337-511”, in Numismatic Chronicle, number 148, page 85:

On 1 January 112... the year opened with a series of celebrations to mark the quindecennalia of the emperor's ascension.

1997, Julian Bennett, Trajan Optimus Princeps: A Life and Times, page 186:

(historical) The festival and religious rituals sometimes observed celebrating a Roman emperor's 15th year of rule.


quindecupartite

From Latin quīndecupartītus, from quīndecim (“fifteen”) + partītus (“-partite, -part”) after the model of tripartītus &c., equivalent to quindec- + -partite.

As in the preceding examples, └┘ ﾤ ｺ ▯ ﾧ placed before the number, will denote the bipartite, tripartite, quadrupartite, quintupartite, sextupartite roots. And in the same way... _ﾛ quindecupartite [15th] ...

2012, Ian Bruce translating John Napier, De Arte Logistica, p. 104

(rare) Having fifteen parts, divided into 15 pieces.