1. noun /ˈsɛn.sə,ˈsɛn.sɚ/
a) A Roman magistrate, originally a census administrator, by Classical times a high judge of public behavior and morality
The Ancient censors were part of the cursus honorum, a series of public offices held during a political career, like consuls and praetors.
The headmaster is an even stricter censor for his boarding pupils correspondence than the enemy censors had been for his own when the country was occupied.
2. verb /ˈsɛn.sə,ˈsɛn.sɚ/
a) To review in order to remove objectionable content from correspondence or public media, either by legal criteria or with discretionary powers
The man responsible for censoring films has seen some things in his time.
b) To remove objectionable content
Occupying powers typically censor anything reeking of resistance
Wikipedia foundation.