censor

1. (Ancient Rome, historical) One of the two magistrates who originally administered the census of citizens, and by Classical times (between the 8th century B.C.E. and the 6th century C.E.) was a high judge of public behaviour and morality.Examples: "The Ancient Roman censors were part of the cursus honorum, a series of public offices held during a political career, like consuls and praetors."; "And Nobly nam'd, ſo twice being Cenſor, / Was his great Anceſtor."; "Neither [the Segetes Lustrantur and the Oves Lustrantur] are in this place, to be underſtood the Luſtra, which were wont to be Celebrated at Rome by the Cenſors, after the Cenſus of Citizens was made by a Sacrifice of the Suovetaurilia; for they had ceaſed long ago, as appeareth by what Cenſorinus writeth in his Book de Die Natali; at which time the Office of Cenſors also ceaſed, which ſome endeavoured, though in vain, to re-eſtabliſh."Synonyms: censorian, censurerAncient-Romehistorical

2. (Ancient China, historical) A high-ranking official who was responsible for the supervision of subordinate government officials.Ancient-Chinahistorical

3. (education) A college or university official whose duties vary depending on the institution.Examples: "During his [Theophilus Higgons's] reſidence in the ſaid houſe [Christ Church, Oxford], he was eſteemed a Perſon to be much ſtained with Puritaniſme, and to be violent againſt all ſuch that were ſuſpected to favour the Romiſh See. When he was Cenſor alſo, he was ſo zealous as to ſaw down a harmleſs maypole ſtanding within the precincts of the ſaid houſe, becauſe forſooth he thought it came out of a Romiſh Foreſt."

4. (obsolete) One who censures or condemns.Examples: "Why that character [of the English Revolution] was so peculiar is sufficiently obvious, and yet seems not to have been always understood either by eulogists or by censors."Synonyms: censurerobsolete

5. (computing) An algorithm that approves or rejects something on grounds of taste or morality etc.Examples: "I tried using a dirty word as my user name for the online game, but the censor rejected it."