What is the term for an organized work stoppage by employees to demand changes from their employer?

An organized work stoppage by employees to demand changes from their employer is termed a strike. Strikes are a fundamental tool used by labor unions and workers to exert pressure on employers, advocating for better wages, working conditions, benefits, or other employment-related demands. During a strike, employees collectively decide to cease work as a form of protest, aiming to negotiate with employers for improvements.

In contrast, picketing typically involves workers standing outside their place of employment, often carrying signs to raise awareness about their cause, but it does not necessarily involve stopping work. Unionization refers to the process of workers coming together to form a union, which can lead to strikes, but it is not the specific term for the work stoppage itself. Boycotts are actions taken by consumers to avoid purchasing goods or services from a company, often in solidarity with workers but distinct from the actions of the workers themselves.

Thus, the term that best captures the organized work stoppage by employees to demand changes is a strike.