Public protest is a form of civil disobedience in which people gather to express their grievances and demand change. UPROAR, an 6-letter solution to the crossword, is a loud and chaotic noise made by a large group of people. OUTCRY, another 6-letter solution, is a loud expression of grief, pain, or anger. Demo, a 4-letter solution, is short for demonstration, which is a public display of opinion or feeling, often in the form of a march or rally.