Other forms: hijacking, hijacked, hijacks
To hijack is to seize control of a vehicle by force. Hijack a plane, a hijacked lorry, hijack the meeting.
The figurative sense is now at least as common: to hijack a meeting or a campaign is to take it over for your own purpose. Airline security since 2001 has been built almost entirely around making a hijack impossible rather than around anything else.
1verbhijackTo seize control of a vehicle by force.
“Armed men tried to hijack a lorry full of cigarettes on the motorway.”
hijack is a seizing.
American, from about 1915, of uncertain origin, possibly from highway plus a slang word for a robber.
Possibly from a highway and jacker (1915).
Etymology from Wiktionary, CC BY-SA