Character Contained In References Comments
Simplified Traditional Ancient forms Archaic forms
traditional formhandwritten form

Variants
Phonetic
Semantic
Apparent
介 田 ⿱田介
Mandarin
jie4
English
Definitions
boundary; circles (ie a group of people); kingdom (taxonomy); extent; group; scope; boundry; domain; limit; society; the world
Mnemonic
Boundaries 介 with redundant field radical 田 added for emphasis