rubric

A class or category.

A title; a name.

A part of a manuscript or book, such as a title, heading, or initial letter, that appears in decorative red lettering or is otherwise distinguished from the rest of the text.

A title or heading of a statute or chapter in a code of law.

A direction in a missal, hymnal, or other liturgical book.

An authoritative rule or direction.

A short commentary or explanation covering a broad subject.

Red ocher.

Red or reddish.