矩

also 法 · 則 · 典 · 範

1. noun rule; law; regulation
2. model; pattern
3. Buddhism teachings of Buddha; Buddhist doctrine
4. transverse measurement; measurement across
5. engineering side-slope; slope

く

1. noun, astronomy quadrature
2. rare square

かね

1. noun carpenter's square
2. ┐; oft. written out as カネ upside-down and mirrored L-shape (used in traditional shop logos combined with another character)
3. archaic perpendicularity; straightness
4. archaic model; standard