a register or directory of socially prominent persons.
any register or directory, as of major companies or officials.
a blank book used in taking college examinations, usually with a blue cover.
a British parliamentary or other publication bound in a blue cover.
5. (initial capital letters) Trademark.
a reference manual listing the current
market value of used cars by model
and year of manufacture.
a similar manual listing the market value of other items, appliances, etc.