fifteenth

American  

[fif-teenth] / ˈfɪfˈtinθ /

adjective

1. next after the fourteenth; being the ordinal number for 15.

2. being one of 15 equal parts.

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noun

• fifteenths
  plural

1. a fifteenth part, especially of one (1/15).

2. the fifteenth member of a series.

3. Music. the interval of two octaves.

fifteenth British  

/ ˈfɪfˈtiːnθ /

adjective

1. 1. coming after the fourteenth in order, position, time, etc. Often written: 15th

   2. ( as noun )

      the fifteenth of the month

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noun

1. 1. one of 15 equal or nearly equal parts of something

   2. ( as modifier )

      a fifteenth part

2. the fraction equal to one divided by 15 ( 1/ 15 )

3. 1. an interval of two octaves

   2. one of two notes constituting such an interval in relation to the other, esp the one higher in pitch

   3. an organ stop of diapason quality sounding a note two octaves higher than that normally produced by the key depressed; a two-foot stop

Other Word Forms

Noun Inflected Forms

• fifteenths
  plural

Etymology

Origin of fifteenth

before 900; Middle English fiftenthe ( see fifteen, -th ²); replacing Middle English fiftethe, Old English fīftēotha

Example Sentences

See Examples For:

fifteenth fifteenths

The farmer, who is calling for tougher penalties for livestock worrying, said this the the fourteenth or fifteenth such attack at his farm.

From BBC ● Jan. 29, 2026

The same people showering Triple H with unprintable language were likely a little bit miffed to see Cena win his inevitable third, eighth or fifteenth championship.

From Salon ● Dec. 14, 2025

By the late fifteenth century, however, the lines originally drawn in biblical maps began spreading into maps of the wider world.

From Science Daily ● Nov. 30, 2025

On the fifteenth floor sits Per Sundin, chief executive of Pophouse Entertainment which runs the museum.

From BBC ● Mar. 14, 2024

Since the fifteenth century, Europeans have spread around the globe and encountered wild mammal species not found in Europe.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond

The parliament, besides arming the queen with these powers, granted her a supply of one subsidy and two fifteenths.

From The History of England in Three Volumes, Vol.I., Part D. From Elizabeth to James I. by David Hume

She received from the parliament, during the course of her whole reign, only twenty subsidies and thirty-nine fifteenths.

From The History of England in Three Volumes, Vol.I., Part D. From Elizabeth to James I. by David Hume

In 1225 Chelmsford was made the centre for the collection of fifteenths from the county of Essex, and in 1227 it became the regular seat of assizes and quarter-sessions.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" by Various

At times of crisis such as the arrival of the Armada the votes were enlarged by granting more tenths and fifteenths and subsidies.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 4 "England" to "English Finance" by Various

The commons readily voted two subsidies and four fifteenths; but this sum not appearing sufficient to the court, an unusual expedient was fallen upon to induce them to make an enlargement in their concessions.

From The History of England in Three Volumes, Vol.I., Part D. From Elizabeth to James I. by David Hume