This is the 4888th most frequent Japanese word.
環
"環" means "ring" or "circle," often representing a loop or surrounding.
Here, '環' (kan) refers to a physical or metaphorical circular shape or ring.
このマンションの周りには環がいくつか作られています。
There are several circles formed around this apartment building.
In this context, '環' (kan) symbolizes the close, supportive relationships among family members.
家族という環の中で、互いに支え合っています。
Within the circle of family, we support each other.
Here, '環' is used in '環境' (kankyō), which means 'environment,' showing its application in compound words to denote surroundings or context.