rubric (Noun) — An authoritative rule of conduct or procedure.
rubric (Noun) — An explanation or definition of an obscure word in a text.
rubric (Noun) — Directions for the conduct of Christian church services (often printed in red in a prayer book).
rubric (Noun) — A heading that names a statute or legislative bill; may give a brief summary of the matters it deals with. ex. "rubric 8 provided federal help for schools"
rubric (Noun) — A title or heading that is printed in red or in a special type.
rubric (Noun) — Category name. ex. "it is usually discussed under the rubric of 'functional obesity'"
rubric (Verb) — Adorn with ruby red colour.