1) (to threaten) to use force against those in control of (a plane etc) in order to achieve certain aims or to reach a desired destination (hijack)
2) a woman having regular sexual intercourse with a man who is not married to her; a woman owner of a dog, horse etc; a woman teacher, especially in private school; a woman in control (of a situation, a large household etc) (mistress)
3) serious and in control of oneself; not drunk; (of colours, tastes etc) ordinary and dull (sober)
off the management of business or government affairs
involved in managing or using power
of managers or management
administrative
having or producing great power
strong, effective
(of a person) legally or morally having to carry out a duty, care (for a person, thing); involving the obligation to make decisions for others and bear the blame for their mistakes
accountable, in charge
