This kanji means system or regulation.

on readings:
  • sei
kun readings:
    -
examples:
hōken seido the feudal system
kansei control
kinsei ban, prohibition
kyōsei compulsion, force
seido system
seidōki brake
seifuku uniform
sensei absolutism, despotism
sessei moderation, self-restraint, temperance
shinsei new order, reorganization
zeisei system of taxation

links:
Samurai Strategies
Wiktionary
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Last ∆ on 23 February 2026 by Bradley James Wogsland.