Cosatu, also known as the Congress of South African Trade Unions, is a South African trade union federation. The term Cosatu can be used interchangeably with other phrases such as "South African Labour Movement," "Trade Union Federation," or simply "Trade Union." Another synonym could be "Workers' Union" or "Trade Union Alliance." Cosatu aims to protect the workers' rights, improve the working conditions, and promote social justice in South Africa. It is a strong voice for employee rights and has helped to shape the labor landscape in the country. Overall, Cosatu is synonymous with championing the rights of the workers and promoting economic equality in South Africa.