音叉[onsa] tuning fork
交叉[kousa] crossing
叉手網[sadeami] dip net
叉銃[sajuu] stacked arms
三叉[mitsumata] three-pronged (fork)

三叉路[sansaro] three-forked road
三仙叉[sansensa] trident dagger
指叉[sasumata] two-pronged weapon for catching a criminal
二叉[futamata] bifurcation

せん状骨[senjoukotsu] scaphoid bone (in wrist near thumb)
遺骨[ikotsu] remains
化骨[kakotsu] ossification
会厭軟骨[eennankotsu] epiglottis
がい骨[gaikotsu] skeleton

雁骨[kariganebone] scapula
気骨[kikotsu] (moral) backbone
侠骨[kyoukotsu] chivalrous spirit
胸骨[kyoukotsu] breastbone
筋骨[kinkotsu] muscles (sinews) and bones