fifteenth

[ fif-teenth ]

adjective

1. next after the fourteenth; being the ordinal number for 15.
2. being one of 15 equal parts.

noun

1. a fifteenth part, especially of one (1/15).
2. the fifteenth member of a series.
3. Music. the interval of two octaves.

ˈfifteenth

/ ˈfɪfˈtiːnθ /

adjective

1. 1. coming after the fourteenth in order, position, time, etc. Often written: 15th
   2. ( as noun )

      the fifteenth of the month

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

Word History and Origins

Origin of fifteenth¹

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

Example Sentences

But in the fifteenth century, small distances are monumental.

From Literature

These undercover judges will decide who wins the Excelsior, which will be awarded at another all-school assembly on March fifteenth.

From Literature

As the "Top Chef" universe continued to expand, so did Lakshmi's relationships to the contestants, like in the case of Fatima Ali, a contestant on the series' fifteenth season in Colorado.

From Salon

The two sides have held regular prisoner exchanges during Russia's invasion of Ukraine, now in its fifteenth month.

From Reuters

That’s close—one fifteenth the distance of Earth from the Sun—but remember, we’re talking red dwarf here, and a particularly dinky one.

From Scientific American