The Oxford Thesaurus An A-Z Dictionary of Synonyms - territory n.

1) area, region, district, neighbourhood, zone, sector, tract, land, precinct, quarter, vicinage, vicinity, purlieu: Each one of these animals stakes out its own territory and protects it. 2) area, bailiwick, domain, province, haunts, patch, Colloq stamping-ground, US turf: Richard would be best advised to stick to his own territory.