矩 (w)

(jǔ) carpenter's square; rule; regulation; pattern; to carve

矩尺 (w)

(jǔchǐ) set square (tool to measure right angles)

矩尺座 (w)

(jǔchǐzuò) Norma (constellation)

矩形 (w)

(jǔxíng) rectangle

矩阵 (w)

(jǔzhèn) array; matrix (math.)