# fifteenth

> English word · Adjective · IPA /ˌfɪfˈtiːnθ/ · frequency rank #19,597

## Definitions
1. The ordinal form of the number fifteen.

## Etymology
Inherited from Middle English fiftenthe, fiftethe, from Old English fīftēoþa, equivalent to fifteen + -th.

## Easily confused with
- **fiftieth** (https://plainspell.com/en/vs/fifteenth-vs-fiftieth)
- **fifteen** (https://plainspell.com/en/vs/fifteen-vs-fifteenth)

## Common misspellings (14)
`ffifteenth`, `ffiteenth`, `fifetenth`, `fiffteenth`, `fifteenht`, `fifteennth`, `fifteenthh`, `fifteentth`, `fifteetnh`, `fifteneth`, `fiftenth`, `fiftteenth`, `fitfeenth`, `iffteenth`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fifteenth