Keyword
border
Info
FrequencyTop 700-800
Type
Kyōiku (5th grade) 
?
KankenLevel 6
Heisig523
Readings
けい
(3%)
Composed of
earth
finally
Used in vocabulary (336 in total)
environment; surroundings; circumstances
border (between countries); national border
state of mind; mental state; mental attitude
Examples (150 in total)
I received the best materials and the best environment.
She takes part in a movement to protect the environment.
It evolved in an environment where it had no need to fly.