Real Dictionary

censor
verb: If someone in authority censors letters or the media, they officially examine them and cut out any information that is regarded as secret.

censor in American English
one of two magistrates in ancient Rome appointed to take the census and, later, to supervise public morals
to subject (a book, writer, etc.) to censorship
noun: an official who examines books, plays, news reports, motion pictures, radio and television programs, letters, cablegrams, etc., for the purpose of suppressing parts deemed objectionable on moral, political, military, or other grounds
transitive verb: to examine and act upon as a censor

censor in British English
noun: a person authorized to examine publications, theatrical presentations, films, letters, etc, in order to suppress in whole or part those considered obscene, politically unacceptable, etc