The word "viziership" is a term that is no longer in common usage. However, it does have some synonyms which were more frequently used in the past. One such synonym is "premiership", which refers to the position of a prime minister or other head of government. Another synonym is "chancellorship", which refers to the position of a chancellor, typically in a university or other educational institution. Both of these terms have a similar connotation to "viziership", in that they refer to a position of high authority and responsibility. Other related terms might include "leadership", "governance", or "administration".