The state of being accurate; being free from error; exactness; correctness
Exact conformity to truth, or to a rule or model; degree of conformity of a measure to a true or standard value.
The quality of being reliable, dependable, or trustworthy.
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).
measurable time of work before failure