S: (n) seat, place (a space reserved for sitting (as in a theater or on a train or airplane)) "he booked their seats in advance"; "he sat in someone else's place"
S: (n) space (an area reserved for some particular purpose) "the laboratory's floor space"
S: (n) area, country (a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)) "it was a mountainous area"; "Bible country"
S: (n) region (a large indefinite location on the surface of the Earth) "penguins inhabit the polar regions"