1.verbTo execute a computer's boot process, effectively resetting the computer and causing the operating system to reload, possibly after a system failure.
"The system reboots every weekend after updates are installed."
2.verbTo start afresh.
"They rebooted the TV series, but it's even worse than the original."
3.verbRestart; to return to a an initial configuration or state.
4.nounThe act by which something (a computer, a TV series, etc.) is rebooted.