Thatcherism refers to the political policies and principles advocated by Margaret Thatcher, Britain's first female Prime Minister, during her time in office from 1979 to 1990. It is known for its emphasis on free-market economic policies, deregulation, privatization, and reduced government intervention. Synonyms for Thatcherism include neoliberalism, economic liberalism, laissez-faire capitalism, supply-side economics, and monetarism. These terms represent various forms of conservative economic thought that prioritize individual freedom, open markets, and limited government intervention in the economy. While these ideas have been popular in some circles, they have also been criticized for widening economic inequality and neglecting the needs of vulnerable populations.