n.
1.the power or right to give orders or make decisions
2.(usually plural) persons who exercise (administrative) control over others
3.an expert whose views are taken as definitive
4.freedom from doubt
5.an administrative unit of government
6.official permission or approval
7.an authoritative written work
Idiom of the Day
over the hill
past one`s prime, too old to be useful
The man is over the hill and should not be working at all.