- the condition or quality of being true, correct, or exact; freedom from error or defect; precision or exactness; correctness.
- the extent to which a given measurement agrees with the standard value for that measurement.
- the degree of correctness of a quantity, expression, etc.
- faithful measurement or representation of the truth; correctness; precision
- the degree of agreement between a measured or computed value of a physical quantity and the standard or accepted value for that quantity