The spelling of "fifteenth" may seem confusing at first glance. However, it follows a standard English phonetic pattern of "-teenth" endings for numbers 13 through 19. The "fif" in "fifteenth" is pronounced as /fɪf/, with the "f" sound followed by the "i" sound as in "sit" and the "f" sound again. The "-teenth" ending is pronounced as /tiːnθ/, with the "t" sound followed by the long "ee" sound as in "tree" and the "n" sound, ending with a soft "th" sound as in "breathe".
The term "fifteenth" is primarily used as an adjective and a noun. As an adjective, it denotes something that occurs or is positioned in the ordinal position of number fifteen in a series. This can refer to the chronological sequence of days, months, or years, often representing the midpoint within the specified time period. For example, "the fifteenth day of the month" indicates the day that falls exactly halfway into the total number of days the month contains. Similarly, "the fifteenth year of a reign" refers to the middle year of a ruler's tenure.
As a noun, "fifteenth" signifies the actual ordinal number fifteen in a series or sequence. It can be utilized to denote an item, a fraction, or a numerical place value. For instance, "the cake was cut into fifteenths" describes the division of the cake into fifteen equal parts. In music, the term "fifteenth" is used to represent a note which is two octaves above the original note. Additionally, it can refer to the interval that spans the difference between these two notes.
Overall, "fifteenth" relates to the numerical position of number fifteen within a counted set or sequence, acting as an adjective to describe this place or as a noun to represent the actual value or item occupying this position.
The fifth after the tenth; ordinal of 15.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
* The statistics data for these misspellings percentages are collected from over 15,411,110 spell check sessions on www.spellchecker.net from Jan 2010 - Jun 2012.
The word "fifteenth" dates back to Middle English, and its origin can be traced to the Old English word "fēowertyneðe". This word is a combination of "fēowertyne" (meaning "fourteen") and "-ðe" (an ordinal suffix). The word "fēowertyneðe" eventually evolved into "fifteenth" in Modern English.