• coer supporter,
• core suppporter,
• core supportor,
• corr supporter,
• core supprter,
• core supoorter,
• core supporetr,
• core sopporter,
• core esupporter,
• core suppoeter

The adjective form of the word "core supporter" is "core-supportive".

The plural form of the word "core supporter" is "core supporters".

The singular form of the word "core supporter" is "core supporter". The term does not change when used in the singular form.