Oxford English DictionaryA. adj. 1. Belonging to all parts of the world; not restricted to any one country or its inhabitants.
2. Having the characteristics which arise from, or are suited to, a range over many different countries; free from national limitations or attachments.
B. noun. 1. Cosmopolite: A ‘citizen of the world’; one who regards or treats the whole world as his country; one who has no national attachments or prejudices.
Cosmopolitanism is the ideology that all human beings belong to a single community, based on a shared morality. A person who adheres to the idea of cosmopolitanism in any of its forms is called a cosmopolitan or cosmopolite. . . . The Stoics [of Ancient Greece] . . . typically stressed that each human being "dwells [...] in two communities – the local community of our birth, and the community of human argument and aspiration"