# decibel vs decider

> English confusable word pair

## The two words

### decibel
*noun · IPA /ˈdɛsɪbɛl/ · frequency rank #49,863*
A common measure of intensity ratio (e.g. for sound) that is one tenth of a bel on the logarithmic intensity scale. It is defined as dB = 10 log₁₀(P₁ / P₂), where P₁ and P₂ are the relative intensities.

### decider
*noun · IPA /dɪˈsaɪdə(ɹ)/ · frequency rank #34,460*
A person, divinity, or authoritative text which decides.

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