# reliability

> English word · Noun · frequency rank #8,081

## Definitions
1. The quality of being reliable, dependable, or trustworthy.
2. the ability to measure the same thing consistently (of a measurement indicating the degree to which the measure is consistent); that is, repeated measurements would give the same result (See also validity).
3. measurable time of work before failure

## Etymology
From reliable + -ity.

## Easily confused with
- **readability** (https://plainspell.com/en/vs/readability-vs-reliability)

## Common misspellings (16)
`erliability`, `reilability`, `relaibility`, `reliabbility`, `reliabiilty`, `reliabilitty`, `reliabilityy`, `reliabiliyt`, `reliabillity`, `reliabiltiy`, `reliabliity`, `reliaiblity`, `relibaility`, `relliability`, `rleiability`, `rreliability`

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