枢 (w)

(shū) hinge; pivot

枢垣 (w)

(shūyuán) censorate

枢密院 (w)

(shūmìyuàn) privy council

枢机 (w)

(shūjī) cardinal (Catholicism)

枢机主教 (w)

(shūjīzhǔjiào) Cardinal (of catholic church)

枢纽 (w)

(shūniǔ) hub (e.g. of traffic network); hinge; pivot; fulcrum

枢轴 (w)

(shūzhóu) pivot; fulcrum