RELIABILITY

Etymology

reliable +‎ -ity

Noun

reliability (usually uncountable, plural reliabilities)

1. The quality of being reliable, dependable or trustworthy. quotations ▼ synonym, synonym ▲Synonym: dependableSynonym: unreliable
2. (education) 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. (engineering) measurable time of work before failure