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Synonyms

reliability

American  
[ri-lahy-uh-bil-i-tee] / rɪˌlaɪ əˈbɪl ɪ ti /
Sometimes reliableness

noun

  1. the ability to be relied on or depended on, as for accuracy, honesty, or achievement.


Other Word Forms

Derived Forms

Etymology

Origin of reliability

reliable + -ity

Explanation

It's nice when someone compliments your reliability because it means they think you are dependable. Things that are known for reliability? Your best friend, sunrise, sunset and unfortunately also taxes. The word is a new one and didn't become common until after 1850 during the Industrial Revolution. Before things were mass produced, how reliable they were was not such an issue. Interesting fact: reliability is an American word, and the Brits scoffed at its new usage.

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Vocabulary lists containing reliability

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Massive data centers are also flooding the Electric Reliability Council of Texas, the state’s main grid operator, with requests for power.

From Salon • Jun. 6, 2026

The state has its own power market, the Electric Reliability Council of Texas, or Ercot, which is exempt from most federal regulations, West added.

From MarketWatch • Mar. 12, 2026

Reliability was so bad that by the start of the final day of the test, Honda had only one battery left, and took the decision to limit running to only short runs.

From BBC • Feb. 20, 2026

In the next decade, peak power demand could soar by a stunning 224 gigawatts, the North American Electric Reliability Corp warned last month.

From Barron's • Feb. 6, 2026

The weather bureau represents Old Reliability herself, in comparison with authors.

From How to Study and Teaching How to Study by McMurry, Frank M. (Frank Morton)

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