Devotion

n.kind, resilientwarm

Meaning 1

Deep love or loyalty expressed through sustained care.

Reach for it when naming affection proved by consistent action

His devotion to his aging dog shaped the rhythm of every day.

everyday
love
when the feeling itself is more important than its proof
not when Love can be deeply felt without the steady service implied by devotion.
warm
affection
when fondness should sound gentle rather than solemn
not when Affection is gentler; it carries no promise of lasting commitment.
warm
loyalty
when standing by someone through change is central
not when Loyalty may continue from duty and need not include tender care.

Wholehearted commitment to a cause, practice, or sacred belief.

Reach for it when describing a purpose given enduring attention and reverence

The singer's devotion to the old repertoire kept rare songs alive.

professional
commitment
when an obligation or chosen purpose guides sustained work
not when Commitment can be contractual and emotionally neutral.
professional
dedication
when effort toward a constructive purpose is the evidence
not when Dedication is less intimate and less reverent than devotion.
formal
faithfulness
when constancy to a belief, promise, or relationship matters
not when Faithfulness stresses not straying, while devotion stresses wholehearted giving.
literary
reverence
when profound respect shapes spiritual or ceremonial practice
not when Reverence can remain an attitude without the active commitment of devotion.

deep devotion
Their deep devotion was visible in countless ordinary acts of care.
devotion to duty
Her devotion to duty never displaced compassion.
religious devotion
The chapel's wall paintings reflect centuries of religious devotion.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.