a set of numbers and letters specifying a location as represented on a map
a reference to another text or part of a text, typically given in order to elaborate on a point
a map reference indicating a location in terms of a series of vertical and horizontal grid lines identified by numbers or letters
a book intended to be consulted for information on specific matters
a social group that a person takes as a standard in forming attitudes and behavior
a basis or standard for evaluation, assessment, or comparison; a criterion
a library, typically one holding many reference books, in which the books are not for loan but may be read on site
a set of criteria in relation to which judgements can be made
the scope and limitations of an activity or area of knowledge
an electrode having an accurately maintained potential, used as a reference for measurement by other electrodes
a company which collects information relating to the credit ratings of individuals and makes it available to banks, finance companies, etc.