short title noun2 •(US, Commonwealth) A title given to an act (or other piece of legislation) to facilitate citation; generally used as the common name for that legislation.The short title of this Act is the Companies Act 2006. — 2006 •An abbreviated form of entry for a book in a list or catalog that usually gives only the author's name, the title in brief, the date and place of publication, and the publisher's or printer's name. formsshort titles