# fifteen

> English word · Numeral · IPA /ˈfɪf.tiːn/ · frequency rank #5,681

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

## Etymology
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.

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

## Common misspellings (10)
`ffifteen`, `ffiteen`, `fifeten`, `fiffteen`, `fifteenn`, `fiften`, `fiftene`, `fiftteen`, `fitfeen`, `iffteen`

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