圏 - sphere, circle, radius

Greater Tokyo Metropolitan area

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

Arctic Circle; the Arctic

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

stratosphere

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

tropopause

within Earth's atmosphere; inner space

atmospheric nuclear test

non-English-speaking world; non-Anglosphere

cirque; corrie; cwm

hour circle; circle of declination