界
jiè
(bound form) boundary; border
(bound form) realm
field (田) + boundary sound (介) = the borders between fields
田 (field) grounds the meaning: boundaries matter most when dividing land. 介 mainly contributes the jiè sound, though its image of a person between two lines fits the idea of a dividing border.
Words with 界
边界
biān jiè
boundary
边界层
biān jiè céng
boundary layer
边界线
biān jiè xiàn
boundary line
金融界
jīn róng jiè
banking circles
开眼界
kāi yǎn jiè
to broaden one's horizons
限界线
xiàn jiè xiàn
boundary
电影界
diàn yǐng jiè
moviedom
灵界
líng jiè
spiritual world
体育界
tǐ yù jiè
sports circles
魔兽世界
mó shòu shì jiè
World of Warcraft (video game)
三个世界
sān ge shì jiè
the Three Worlds (as proposed by Mao Zedong), i.e. the superpowers (USA and USSR), other wealthy countries (UK, France, Japan etc), and the developing countries of Asia, Africa and Latin America
三千大千世界
sān qiān dà qiān shì jiè
cosmos (Buddhism)