reliability

noun

re·​li·​abil·​i·​ty ri-ˌlī-ə-ˈbi-lə-tē How to pronounce reliability (audio)
Synonyms of reliabilitynext
1
: the quality or state of being reliable
2
: the extent to which an experiment, test, or measuring procedure yields the same results on repeated trials

Examples of reliability in a Sentence

we never had reason to question the reliability of the park rangers in the event of an emergency
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Nike pays top dollar to its biggest names, but its payment structure can be based on performance, both in terms of results and reliability. Charlie Eccleshare, New York Times, 13 Jan. 2026 They are used in military applications, aerospace systems, emergency power supplies, and deep-well drilling equipment—settings where reliability and performance cannot be compromised. Prabhat Ranjan Mishra, Interesting Engineering, 12 Jan. 2026 Meanwhile, the same report said the F-35 has suffered from reliability issues in recent years. Matthew Adams, Fort Worth Star-Telegram, 12 Jan. 2026 At the same time, Ikon has focused on destinations known for snow reliability, distinctive local culture, and terrain that complements its North American lineup. Bailey Berg, Condé Nast Traveler, 11 Jan. 2026 See All Example Sentences for reliability

Word History

First Known Use

1810, in the meaning defined at sense 1

Time Traveler
The first known use of reliability was in 1810

Browse Nearby Words

Cite this Entry

“Reliability.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reliability. Accessed 14 Jan. 2026.

Kids Definition

reliability

noun
re·​li·​abil·​i·​ty ri-ˌlī-ə-ˈbil-ət-ē How to pronounce reliability (audio)
plural reliabilities
: the quality or state of being reliable

Medical Definition

reliability

noun
re·​li·​abil·​i·​ty ri-ˌlī-ə-ˈbil-ət-ē How to pronounce reliability (audio)
plural reliabilities
: the extent to which an experiment, test, or measuring procedure yields the same results on repeated trials

More from Merriam-Webster on reliability

Last Updated: - Updated example sentences
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