to use violence or threats to take control of a vehicle, especially a plane, in order to force it to travel to a different place or to demand something from a government
هواپیماربایی, هواپیما ربودن, سرقت وسایل نقلیه
2
to use or take control of something, for example a meeting, in order to use it for your own aims and interests
تصاحب کردن, غصب کردن
Demonstrators fear that the march could be hijacked by extremists.