(bound form) rules; customs; regulations; standards of conduct

(bound form) a tool for drawing right angles or squares; a ruler or square

(archaic) to carve or engrave

(bound form) a carpenter's square or L-square ruler; a tool used for drawing right angles

(bound form) rules, regulations, or standards of conduct; often used in the word 规矩 guī​ju

(bound form) a rectangle or square shape; rectangular