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
The researchers achieved antenna alignment control within 10 micrometers (μm), about one-seventh the thickness of a human hair, ensuring high measurement reliability in sensitive high-frequency bands.
—
Jijo Malayil, Interesting Engineering, 31 Mar. 2026
The move is a direct attempt to address issues around AI errors (known as hallucinations) and boost the reliability of AI tools—problems that have slowed enterprise adoption of Copilot amid stiff competition from Google's Gemini and Anthropic's Claude.
—Alexei Oreskovic, Fortune, 31 Mar. 2026
The company has been working toward improving safety, strengthening storm and emergency response, and improving reliability, according to its website.
—Alexandra Kukulka, Chicago Tribune, 30 Mar. 2026
The City of Fort Worth says the work is focused on repairing deteriorating concrete along a high-traffic corridor to improve safety and reliability.
—Tiffani Jackson, Fort Worth Star-Telegram, 29 Mar. 2026
See All Example Sentences for reliability
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.
Jijo Malayil, Interesting Engineering, 31 Mar. 2026
The move is a direct attempt to address issues around AI errors (known as hallucinations) and boost the reliability of AI tools—problems that have slowed enterprise adoption of Copilot amid stiff competition from Google's Gemini and Anthropic's Claude.
—Alexei Oreskovic, Fortune, 31 Mar. 2026
The company has been working toward improving safety, strengthening storm and emergency response, and improving reliability, according to its website.
—Alexandra Kukulka, Chicago Tribune, 30 Mar. 2026
The City of Fort Worth says the work is focused on repairing deteriorating concrete along a high-traffic corridor to improve safety and reliability.
—Tiffani Jackson, Fort Worth Star-Telegram, 29 Mar. 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 1 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
Love words? Need even more definitions?
Merriam-Webster unabridged
