The significance of civil liberties in a democratic society lies in their role as fundamental rights that protect individuals from government overreach and ensure personal freedoms. Civil liberties include the right to free speech, assembly, and due process, promoting an environment where citizens can express opinions and engage in political processes without fear of oppression. These freedoms are essential for fostering a vibrant democracy, allowing for diverse viewpoints and dissent to coexist and be debated, which is vital for informed governance.