This is the 4669th most frequent Japanese word.
教徒
Follower or believer of a religion.
Here, 'イスラム教徒' (Isuramu-Kyo-to) signifies 'Muslim,' describing individuals practicing Islam.
その地域には多くのイスラム教徒が住んでいます。
Many Muslims live in that area.
Here, '仏教徒' (Bukkyo-to) refers to 'Buddhist,' indicating someone adherent to Buddhism.
私は熱心な仏教徒です。
I am a devoted Buddhist.
In this sentence, 'キリスト教徒' (Kirisuto-Kyo-to) means 'Christian,' representing a person who follows Christianity.