The correct answer to this open question is the following.
The root of the word "Progressivism" is the following.
Progress-to move forwards. "Ivism," the practice or action of progress.
Progressivism can be understood as a philosophy in politics that support the idea of creating social reformation in order to generate social progress, benefiting the majority of the people in need. It could be in different areas of social life such as the economy, politics, science, or culture.
In the case of the United States, the country lived a period known as the Progressive era that started in 1896 and ended in 1916. During this period, there were many reforms and laws that sought changes to improve the conditions left by the industrialization time.
Even today, progressist ideas still exist. For example, when the government support legislation to create a social program that benefits most Americans, the poor, or a minority group.