1.NounThe act or state of devoting or being devoted; a feeling of being devoted (to something).
"deep devotion; blind devotion; show devotion; Her devotion to her family was clear in everything she did.; The teacher’s devotion to her students inspired many.; The book describes the knight’s devotion to his king."
2.NounReligious veneration, zeal, or piety.
"He showed great devotion to his religious practices."