stratum; geological formation; layer; bed (coal, gravel, etc.)

(petrology) sandstone / grit (such as for sanding, polishing, or traction)

(petrology, uncommon) sandstone

area, district, particular geographic region

to spread, to extend

(disaster prevention) Short for 木造住宅密集地域 (mokuzō jūtaku misshū chiiki, “densely built wooden house area”).

British Antarctic Territory (an overseas territory in the Antarctic administered by the United Kingdom, and also including the South Orkney Islands and South Shetland Islands)

British Indian Ocean Territory (an archipelago and overseas territory of the United Kingdom in the Indian Ocean)