Usage:The advocate frequently refered to his notes.
Usage:You should refer a patient to a specialist for treatment.
Usage:Both the referees in the football match were impartial.
Usage:I am writing with reference to your job application.
Usage:Keep this list of numbers near the phone for easy reference.
Usage:the extension of `satellite of Mars is the set containing only Demos and Phobos
Usage:You should not have done it without reference to me first.
Usage:Our government can settle a national problem by referendum.
Usage:he contributed articles to the basic reference work on that topic