Definition: [verb] use one's authority to reject or cancel (a decision, view, etc.).
Example: the courts will ultimately override any objections
Definition: [verb] interrupt the action of (an automatic device), typically in order to take manual control.
Example: you can override the cut-out by releasing the switch
Definition: [verb] extend over; overlap.
Example: the external rendering should not override the damp-proof membrane
Definition: [verb] travel or move over.
Example: part of the deposit was overridden and covered by the advancing ice
Definition: [noun] a device for suspending an automatic function on a machine.
Example: the flash has to have a manual override to be useful
Definition: [noun] an excess or increase on a budget, salary, or cost.
Example: commission overrides give established carriers an unfair advantage
Definition: [noun] a cancellation of a decision by exertion of authority or winning of votes.
Example: the House vote in favour of the bill was 10 votes short of the requisite majority for an override