• 圏内けんない

  inside (a region, area, etc.), within the range (of), within the sphere (of influence, etc.)

• 圏外けんがい

  outside (a region, area, etc.), out of range (of a mobile network, radar, etc.), outside the sphere (of influence, etc.), out of contention, out of reach

• 北極圏ほっきょくけん

  Arctic Circle, the Arctic

• 首都圏しゅとけん

  Greater Tokyo Metropolitan area

• 成層圏せいそうけん

  stratosphere

• 圏けん

  sphere, circle, range, area, zone, bloc

• 圏論けんろん

  category theory

• 圏谷けんこく

  cirque, corrie, cwm

• 圏域けんいき

  sphere (e.g. of knowledge, influence)

• 圏点けんてん

  emphasis mark (used in Japanese text in a way similar to underlining)

• 水圏すいけん

  hydrosphere

• 商圏しょうけん

  business region, marketing area, commercial sphere, trading area, region in which a business operates

• 大圏たいけん

  great circle

• 極圏きょっけん

  polar circle, polar region

• 熱圏ねつけん

  thermosphere

• 時圏じけん

  hour circle, circle of declination

• 気圏きけん

  atmosphere

• 根圏こんけん

  rhizosphere

• 圏界面けんかいめん

  tropopause

• 受苦圏じゅくけん

  harm zone, people who will suffer the negative effects of new public facilities, infrastructure, etc. (e.g. pollution)

• 岩石圏がんせきけん

  lithosphere

• 共栄圏きょうえいけん

  co-prosperity sphere

• 共産圏きょうさんけん

  communist bloc, Iron Curtain

• 勢力圏せいりょくけん

  sphere of influence

• 南極圏なんきょくけん

  Antarctic Circle, the Antarctic

• 暴風圏ぼうふうけん

  storm zone

• 生物圏せいぶつけん

  biosphere, biome

• 対流圏たいりゅうけん

  troposphere

• 文化圏ぶんかけん

  cultural sphere

• 大気圏たいきけん

  the atmosphere

• 外気圏がいきけん

  outer atmosphere

• 生活圏せいかつけん

  one's daily milieu, neighbourhood, neighborhood, zone of life, sphere of life

• 影響圏えいきょうけん

  sphere of influence

• 得点圏とくてんけん

  scoring position

• 引力圏いんりょくけん

  gravitational field (of a celestial body), sphere of gravitation, gravisphere

• 英語圏えいごけん

  English-speaking world, English-speaking countries, Anglosphere

• 安全圏あんぜんけん

  safety zone, buffer (e.g. against defeat)

• ソ連圏ソれんけん

  Soviet bloc

• 中間圏ちゅうかんけん

  mesosphere

• 電離圏でんりけん

  ionosphere

• 磁気圏じきけん

  magnetosphere

• 垂直圏すいちょくけん

  vertical circle

• 鉛直圏えんちょくけん

  vertical circle

• 都市圏としけん

  urban area, metropolitan area, metropolitan region

• 経済圏けいざいけん

  economic bloc

• 漢字圏かんじけん

  countries where Chinese characters are used or were historically used

• 交通圏こうつうけん

  traffic area, traffic block

• 公共圏こうきょうけん

  public sphere, public domain

• 行動圏こうどうけん

  home range

• 重力圏じゅうりょくけん

  gravitational sphere (of a celestial body), gravitational field