This is the kanji for reason, logic, and principle.

on readings:
  • ri
kun readings:
    -
examples:
butsurei physics
butsureigaku physics
butsureigakusha physicist
butsureiteki physical
kanri administration, supervision
keiri accounting
muri unreasonable
rika natural sciences department
riron theory
riyū reason, grounds
ronri logic
ryouri cooking
ryōrinin chef
ryouriten restaurant
seiri adjustment, arrangement
zeirishi tax accountant

links:
Wiktionary
Japanese homepage | top

Last Alteration Performed: 21 December 2025 by Bradley James Wogsland.