Is “Highjack” a Scrabble word?

1.An instance of hijacking; the illegal seizure of a vehicle; a hijacking.

2.An instance of a seizure and redirection of a process.

3.An amendment which deletes the contents of a bill and inserts entirely new provisions.

1.To forcibly stop and seize control of some vehicle in order to rob it or to reach a destination (especially an airplane, truck or a boat).

2.To seize control of some process or resource to achieve a purpose other than its originally intended one.

3.To seize control of a networked computer by means of infecting it with a worm or other malware, thereby turning it into a zombie.