# hertz

> English word · Noun · IPA /hɜːts/ · frequency rank #26,816

## Definitions
1. In the International System of Units, the derived unit of frequency; one (period or cycle of any periodic event) per second.

## Etymology
Named after German physicist Heinrich Rudolf Hertz (1857–1894).

## Easily confused with
- **het** (https://plainspell.com/en/vs/hertz-vs-het)
- **HRT** (https://plainspell.com/en/vs/hertz-vs-hrt)
- **hurt** (https://plainspell.com/en/vs/hertz-vs-hurt)
- **hurts** (https://plainspell.com/en/vs/hertz-vs-hurts)
- **huerta** (https://plainspell.com/en/vs/hertz-vs-huerta)
- **her** (https://plainspell.com/en/vs/her-vs-hertz)
- **here** (https://plainspell.com/en/vs/here-vs-hertz)
- **heat** (https://plainspell.com/en/vs/heat-vs-hertz)
- **hero** (https://plainspell.com/en/vs/hero-vs-hertz)
- **hart** (https://plainspell.com/en/vs/hart-vs-hertz)
- **hers** (https://plainspell.com/en/vs/hers-vs-hertz)
- **herb** (https://plainspell.com/en/vs/herb-vs-hertz)
- **herd** (https://plainspell.com/en/vs/herd-vs-hertz)
- **Herr** (https://plainspell.com/en/vs/herr-vs-hertz)
- **Hera** (https://plainspell.com/en/vs/hera-vs-hertz)
- **heft** (https://plainspell.com/en/vs/heft-vs-hertz)
- **heart** (https://plainspell.com/en/vs/heart-vs-hertz)
- **heath** (https://plainspell.com/en/vs/heath-vs-hertz)
- **heats** (https://plainspell.com/en/vs/heats-vs-hertz)
- **hefty** (https://plainspell.com/en/vs/hefty-vs-hertz)

## Common misspellings (8)
`ehrtz`, `herrtz`, `herttz`, `hertzz`, `herzt`, `hetrz`, `hhertz`, `hretz`

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