"Pro bono publico" is a Latin phrase that means "for the public good." There are many synonyms that can be used to express the same concept, such as "public service," "charitable work," "volunteerism," "humanitarian aid," "philanthropy," and "altruism." These words can be used to describe actions and contributions that individuals or organizations make for the benefit of society as a whole, without expecting any personal gain or monetary compensation. Engaging in pro bono publico work is a way of expressing generosity, compassion, and social responsibility while making a meaningful impact on the lives of others.