規矩
guī​juguī​jǔ HSK7

rule

guī​ju rule · well-behaved · to discipline
  1. 规 規 guī noun
    rules
    (bound form) established regulations, laws, or norms
  2. 矩 jǔ noun
    rules
    (bound form) rules; customs; regulations; standards of conduct

guī​jǔ compass and square
  1. 规 規 guī
    compasses
    (bound form) drawing tool used for circles or measuring distance; compass; dividers
  2. 矩 jǔ
    carpenter's square
    (bound form) a tool for drawing right angles or squares; a ruler or square