Noun
1. an authoritative rule of conduct or procedure
2. an explanation or definition of an obscure word in a text
3. directions for the conduct of Christian church services (often printed in red in a prayer book)
4. a heading that names a statute or legislative bill; may give a brief summary of the matters it deals with;
"Title 8 provided federal help for schools"5. a title or heading that is printed in red or in a special type
6. category name;
"it is usually discussed under the rubric of `functional obesity'"