adherent
nounUK /ədˈhɪərənt/
US /ədˈhɪrənt/
A person who follows and supports a leader, group, or idea.
She is a loyal adherent of the local running club.
OTHER MEANINGS
2. Sticking firmly to a surface.
The adherent tape held the poster to the wall.
3. A substance that sticks things together.
The glue acts as an adherent for the broken pieces.
4. Believing strongly in a particular idea or rule.
He is adherent to the rules of the game.