reliability
noun
re·li·abil·i·ty
ri-ˌlī-ə-ˈbi-lə-tē 
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
In sum, his presidency has introduced serious doubts about the reliability of the United States.
—
Sergio Munoz Bata, Oc Register, 7 Apr. 2026
The downside of such reliability is that even the smallest miscue seems shocking by comparison.
—Gabrielle Starr, Boston Herald, 6 Apr. 2026
Adding defensive end Rashan Gary will help bolster a pass rush that was dormant for stretches at a time last season, and bringing in safety Jalen Thompson will give some reliability on the back end that Dallas desperately needed after giving up the most passing yards of any team in the NFL in 2025.
—Nick Harris, Fort Worth Star-Telegram, 6 Apr. 2026
Electricity from batteries — which emit no greenhouse gases — can offset power that would otherwise be supplied by fossil fuel generation such as natural gas, while also enhancing grid reliability during those hours.
—Rob Nikolewski, San Diego Union-Tribune, 6 Apr. 2026
See All Example Sentences for reliability
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Sergio Munoz Bata, Oc Register, 7 Apr. 2026
The downside of such reliability is that even the smallest miscue seems shocking by comparison.
—Gabrielle Starr, Boston Herald, 6 Apr. 2026
Adding defensive end Rashan Gary will help bolster a pass rush that was dormant for stretches at a time last season, and bringing in safety Jalen Thompson will give some reliability on the back end that Dallas desperately needed after giving up the most passing yards of any team in the NFL in 2025.
—Nick Harris, Fort Worth Star-Telegram, 6 Apr. 2026
Electricity from batteries — which emit no greenhouse gases — can offset power that would otherwise be supplied by fossil fuel generation such as natural gas, while also enhancing grid reliability during those hours.
—Rob Nikolewski, San Diego Union-Tribune, 6 Apr. 2026
See All Example Sentences for reliability
Cite this Entry
“Reliability.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reliability. Accessed 14 Apr. 2026.
Copy CitationKids Definition
reliability
noun
re·li·abil·i·ty
ri-ˌlī-ə-ˈbil-ət-ē
plural reliabilities
: the quality or state of being reliable
Medical Definition
reliability
noun
re·li·abil·i·ty
ri-ˌlī-ə-ˈbil-ət-ē
plural reliabilities
: the extent to which an experiment, test, or measuring procedure yields the same results on repeated trials
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