What does "reliability" mean?

The quality of being reliable, dependable, or trustworthy.

Reliability

Common synonyms include: dependability, accept responsibility, acceptability, accuracy, accuracy matters, act responsibly.

noun

noun ·6 syllables ·Common ·High school level

Noun

1
The quality of being reliable, dependable, or trustworthy. uncountable, usually
"Above all, rail needs to be boring. By that, I mean that it must run its timetable reliably, day-in and day-out. Punctuality and reliability remain the bedrock of a successful railway."
2
the quality of being dependable or reliable wordnet
3
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). uncountable, usually
4
measurable time of work before failure uncountable, usually

"Cosby's argument concerns the reliability of the Hette Manuscript."

From reliable + -ity.