noun / cos·mo·pol·i·tan
the ideology that all human beings belong to a single community, based on a shared morality.
(SOURCE – Wikipedia)
This word was found in the reading Univers Strikes Back, “the Princeton philosopher and ethicist born and raised in Ghana, has questioned the values of multiculturalism in the name of a new “cosmopolitanism,” literally, “world citizenship.” Now I understand that this word means a thought that all human had same by sharing morality.
What does the sentence you quoted from “Univers Strikes Back” mean now that you understand what cosmopolitanism is? Be careful to use the right part of speech, too–cosmopolitanism doesn’t refer to a person but to a set of ideas or practices that the cosmopolitan person would have. You need to complete that fourth part to finish your glossary entry.