地域【ちいき】
area, region, district, locality
領域【りょういき】
area, domain, territory, field, range, region, regime
区域【くいき】
limits, boundary, domain, zone, sphere, territory, area (e.g. in programming languages)
聖域【せいいき】
sacred precincts, sanctuary, consecrated ground, holy ground, issue that is regarded as being off-limits, matter that is not up for discussion
海域【かいいき】
area of ocean
域内【いきない】
inside the area
全域【ぜんいき】
the whole area, all areas
域外【いきがい】
outside the area
流域【りゅういき】
drainage basin, catchment basin, river basin, watershed, valley
地域社会【ちいきしゃかい】
regional community
広域【こういき】
wide area, wide view (of a digitally displayed map), zoomed-out view
空域【くういき】
airspace
水域【すいいき】
waters, water area
戦域【せんいき】
war area, battlefield, theater, theatre
職域【しょくいき】
range of one's work, one's area of responsibility, range of one's duties, place of one's work
音域【おんいき】
range (of a voice or instrument), register, compass
西域【せいいき】
western regions of China
芸域【げいいき】
range of skills
