Which term refers to organized actions taken to oppose or resist an initiative or law?

The term that best describes organized actions taken to oppose or resist an initiative or law is protest. Protests are typically public demonstrations where individuals or groups express their disapproval or demand changes to policies or practices. This form of action can take various shapes, such as marches, rallies, or sit-ins, and is aimed at raising awareness or applying pressure on decision-makers to oppose an initiative or legal change.

While a campaign can involve promotional activities to support a cause, it is not exclusively about opposing something. A movement generally refers to a broader, sustained effort toward social change that may include multiple forms of advocacy, not limited solely to direct opposition. An uprising typically implies a more violent or aggressive response to authority, often involving a broader insurrection rather than organized protests that emphasize civic engagement. Thus, in the context of organized resistance specifically aimed against a law or initiative, protest is the most accurate choice.