Definitions

1. verb

to take control of a vehicle, aircraft, or other means of transport by force or threat, especially by a person on board

“The hijackers seized control of the plane and demanded to be taken to a foreign country.”

2. noun

the act of taking control of a vehicle, aircraft, or other means of transport by force or threat

“The hijacking of the plane was a major news story for days.”

3. noun

information or a signal sent to a television or radio broadcast to interrupt its normal programming

“The hijack signal was sent to the station, causing the show to be interrupted.”