Nounquadrature · square

Nouncarpenter's square · upside-down and mirrored L-shape (used in traditional shop logos combined with another character) · perpendicularity; straightness

Noun, Noun which may take the genitive case particle 'no'rectangle

Nouncarpenter's square (for checking angles) · common shaku (unit of distance; approx. 30.3 cm)

Nounstandard; criterion; rule; norm · compass and ruler