Definition of "opt-out" []

• Of a selection, the property of having to choose explicitly to avoid or forbid something; a decision having the default option being inclusion or permission; used particularly with regard to mailing lists and advertisement. (adjective)
• The act of opting out of something (noun)
• A school or hospital that has withdrawn from local control (noun)

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• "The dehumanising aspect makes it easier to shoot someone, but much harder to form a real working relationship or sense of common humanity with those you want to opt-out of the fight or help you win one."
• "The idea of an opt-out system, in which it is assumed that people have consented to donation unless they explicitly objected before they died, was rejected."
• "Peter Wardle, chief executive of the Electoral Commission, said: We're glad to see they have recognised the strength of our concerns about the proposed registration opt-out."