Definitions

1. noun

the act of taking control of a vehicle, especially an aircraft, by force or threat

“The hijackers threatened to blow up the plane unless their demands were met.”

2. verb

to take control of a vehicle, especially an aircraft, by force or threat

“The pilots were highjacked by the terrorists and forced to fly to a different location.”

3. verb

to take control of a system or process, especially a computer system, by unauthorized means

“The company’s computer system was highjacked by a group of hackers.”