1. approver - Noun
2. approver - Verb
One who approves. Formerly, one who made proof or trial.
An informer; an accuser.
One who confesses a crime and accuses another. See 1st Approvement, 2.
A bailiff or steward; an agent.
Source: Webster's dictionaryOnce submitted, changes need to be accepted by a designated Approver. Source: Internet