• two-hornedd,
• tw-horned,
• two-hurned,
• twoohorned,
• two-hornd,
• twoo-horned,
• to-horned,
• twohrned,
• two-horne,
• two-hrned,
• two-horner,
• toe-horned,
• two-harned,
• tww-o-horned,
• twho-horned

The adjective form of "two-horned" is "bicornate".

The plural form of "two-horned" is "two-horned". The word doesn't change in its plural form.

The singular form of the word "two-horned" is "two-horned". The word does not change in its singular form.