Fidelity

ве́рность

vérnostʹ

(faithfulness to one's duties)

ка́чество

káčestvo

(the degree to which an electronic system accurately reproduces a given sound or image)

лоя́льность

lojálʹnostʹ

(loyalty, especially to one's spouse)

то́чность

tóčnostʹ

(accuracy, or exact correspondence to some given quality or fact)