What is Reference ?
Reference is (noun) 1. an act of mentioning something or someone She made a reference to her brother-in-law. The report made no reference to the bank. Synonym mention with reference to concerning, about With reference to your letter of May 25th. 2. a direction for further information There are bibliographic references at the back of the book. 3. a report on someone’s character and ability We ask all applicants to supply references. to take up references to get in touch with referees to see what they think of the person applying for a job When she applied for the job we took up her references and found they were not as good as we had hoped. 4. a person who gives a report on your character and ability He gave my name as a reference. Please use me as a reference if you wish.
source: Easier English, Student Dictionary Upper Intermediate Level