Charity is a nonprofit organization whose primary objectives are philanthropy and social well-being. The legal status of a charity varies from country to country, but fundamentally, your charitable organizations may not use any of its funds to profit individual persons or entities.
A good example would be the British Heart Foundation https://www.bhf.org.uk/, who raise money to research cures and treatments for heart and circulatory diseases.
Your organizations must be independent of government involvement and should be active in humanitarianism or the social sciences. NGO.org describes NGOs as "[an NGO is] any non-profit, voluntary citizens' group which is organized on a local, national or international level ... Task-oriented and driven by people with a common interest, NGOs perform a variety of service and humanitarian functions, bring citizen concerns to Governments, advocate and monitor policies and encourage political participation through provision of information."
A good example is Engineers Without Borders Australia https://www.ewb.org.au/ , this is an NGO community group that aims to ensure all people have access to engineering knowledge and resources required to live without poverty.
Dedicated to furthering a particular social cause or advocating for a shared point of view.
It is an organization using its surplus of the revenues to further achieve its ultimate objective, rather than distributing its income to the organization's shareholders, leaders, or members. A good example would be Red Cross USA
https://www.redcross.org/, Red Cross volunteers and staff work to deliver vital services like providing relief and support to those in crisis.