Private schools, or inependent schools, are schools not administered by local, state, or national government, which retain the right to select their student body and are funded in whole or in part by charging their students tuition rather than with public (state) funds. In the United Kingdom and some other Commonwealth countries the use of the term is generally restricted to primary and secondary educational levels: it is almost never used of universities or other tertiary institutions. Private education in North America covers the whole gamut of educational activity. Private schools range from pre-school to tertiary level institutions. Annual tuitions at K-12 schools range from nothing at tuition-free schools to more than $40,000 at several boarding schools.