To withdraw or repudiate a statement or opinion formerly expressed, especially formally and publicly.
To give a new cant (slant, angle) to something, in particular railway track on a curve.
To use a veto against.
An invocation of that right.
A technique or mechanism for discarding what would otherwise constitute a false positive in a scientific experiment
A political right to disapprove of (and thereby stop) the process of a decision, a law etc.
An authoritative prohibition or negative; a forbidding; an interdiction.