Also written as 指矩

carpenter's square

instigation; suggestion; manipulation; (someone's) doing

Kabuki

metal wire with a prop animal (e.g. butterfly, bird) attached to the end

rod used to control the arm of a puppet (in bunraku)

quadrature

rectangle

carpenter's square

┐; oft. written out as カネ

upside-down and mirrored L-shape (used in traditional shop logos combined with another character)

Archaic

perpendicularity; straightness

Archaic

model; standard

rule; law; regulation

model; pattern

Buddhism

teachings of Buddha; Buddhist doctrine

transverse measurement; measurement across

Engineering

side-slope; slope

standard; criterion; rule; norm

compass and ruler

carpenter's square (for checking angles)

common shaku (unit of distance; approx. 30.3 cm)

Astronomy

quadrature

Physics

square wave; rectangular wave

Idiomatic expression; From the Analects of Confucius

following the desires of one's own heart without transgressing what is right