People enotes a group of humans, either with unspecified traits, or specific characteristics (e.g. the people of Spain or the people of the Plains). The term people is often used in English as the suppletive plural of person. However, the word persons is sometimes used in place of people, especially when it would be ambiguous with its collective sense (e.g. missing persons instead of missing people). The term people can collectively refer to all humans or it can be used to identify the citizens of a nation, or members of a tribe, ethnic, or religious group. For example, "people of color" is a phrase used in North America to describe non-whites.