n. - An official summons or notice given to a person to appear; the paper containing such summons or notice.
n. - The act of citing a passage from a book, or from another person, in his own words; also, the passage or words quoted; quotation.
n. - Enumeration; mention; as, a citation of facts.
n. - A reference to decided cases, or books of authority, to prove a point in law.