Correspondence or compatibility.
Freedom from contradiction; the state of a system of axioms such that none of the propositions deduced from them are mutually contradictory.
Reliability or uniformity; the quality of being consistent.
The degree of viscosity of something.
Local coherence.
The relation of sharing properties.
A transformation that preserves angles and the ratios of distances
The property of two matrices being similar.
Closeness of appearance to something else.