adherent
Adherent (noun) means a person who supports a particular leader, party, religion or set of ideas. Example: “The movement claims several million adherents worldwide.”
How to use adherent
Learner’s notesIn plain EnglishSomeone who firmly supports a belief, group or leader.
Formal. Common in religious, political and academic writing.
Both meanings come from one image: sticking. People stick to a cause; tissue sticks to a surface.
Trace the full origin ↓Fill the gap
Can you complete this real example?
The movement claims several million _____ worldwide.
Etymology
From Latin adhaerentem, present participle of adhaerere 'to stick to', from ad- 'to' + haerere 'to stick'.