# K9 vs kph

> English confusable word pair

## The two words

### K9
*noun · IPA /ˈkeɪnaɪn/ · frequency rank #36,625*
A trained police dog.

### kph
*noun · IPA /ˌkeɪpiˈeɪt͡ʃ/ · frequency rank #47,147*
Initialism of kilometre(s) per hour.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/k9-vs-kph