# frequency

> English word · Noun · IPA /ˈfɹiːkwənsi/ · frequency rank #3,881

## Definitions
1. The rate of occurrence of anything; the relationship between incidence and time period.
2. The property of occurring often rather than infrequently.
3. The quotient of the number of times n a periodic phenomenon occurs over the time t in which it occurs: f=n/t.
4. A tone, character, mood, or vibe
5. number of times an event occurred in an experiment (absolute frequency)
6. range of electromagnetic waves used for wireless communication in devices like radios, TVs and mobile phones

## Etymology
From Latin frequentia, from frequens. By surface analysis, frequent + -cy.

## Easily confused with
- **frequent** (https://plainspell.com/en/vs/frequency-vs-frequent)
- **frequently** (https://plainspell.com/en/vs/frequency-vs-frequently)

## Common misspellings (14)
`ferquency`, `ffrequency`, `freqeuncy`, `freqquency`, `frequecny`, `frequenccy`, `frequencyy`, `frequenncy`, `frequenyc`, `frequnecy`, `freuqency`, `frqeuency`, `frrequency`, `rfequency`

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