They are synonyms. 'censure' is used mainly in formal situations to mean 'reprimand' or 'criticize'. Other synonyms: 'rebuke', 'scold' and 'criticize'.

Reprimand A reprimand is a severe, formal or official reproof. Reprimanding takes in different forms in different legal systems, such as in UK law. In the UK, anybody above the ages of 10 can receive a reprimand. It is a formal verbal warning given by a police officer to a young person who admits they are guilty of a minor first offense. To receive a reprimand, the young person must have admitted the offense and shown that they are sorry for the harm that may have been caused. Censure Censure is a process by which a formal reprimand is issued to an individual by an authoritative body. In a deliberative assembly, a motion to censure is used. In politics, censure is an alternative to more serious measures against misconduct or dereliction of duty. In the US, Censure is a procedure for publicly reprimanding a public official for inappropriate behavior. When the president is censured, it serves merely as a condemnation and has no direct effect on the validity of presidency, nor are there any other particular legal consequences. Unlike impeachment, censure has no basis in the Constitution or in the rules of the Senate and House of Representatives. It derives from the formal condemnation of either congressional body of their own members.

censure = gag/block reprimand = tell off/criticise

syn

actually censur is the synonyms of reprimand.look sensure means harsh criticism or disapproval,the state of being excommunicated and as to verb it means rebuke formally as to noun an act or expression of criticism and censure cowboy... while repimand as verb means,Rebuke formally,Rebuke formally