From Japanese-German FreeDict Dictionary ver. 0.2.0:
索 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, さく /sˈäkɯᵝ/
(noun (common) (futsuumeishi))
(1) (n) Seil, (m) Strick, (n) Tau, (2) (m) Strang, (n) Band, (m) Zug, (f) Bahn, (3) (m) Strick, (f) Schlinge (in der Hand von Buddhastatuen gehaltener symbolischer Gegenstand)