devotee
/dɪvəʊˈtiː/Definitions
1. noun
A person who is very enthusiastic and loyal in their support of a particular person, activity, or cause.
“She was a devoted fan of the musician and attended every concert in his tour.”
2. noun
A person who gives their time and energy to a particular activity or cause, often without being paid.
“The doctor’s team of devotees worked tirelessly to raise funds for the medical center.”
3. noun
A person who is deeply committed to a particular religion, philosophy, or idea.
“He was a devoted follower of the spiritual guru and attended his retreat every year.”