遺骸[igai] remains
骸骨[gaikotsu] skeleton
形骸[keigai] ruin
残骸[zangai] ruins

亡骸[nakigara] remains
屍骸[shigai] body
形骸化[keigaika] becoming a mere shell or dead letter
聖骸布[seigaifu] holy shroud (i.e. the Shroud of Turin)

巨躯[kyoku] big frame
衰躯[suiku] emaciated body
全躯[zenku] the whole body
体躯[taiku] the body
矮躯[waiku] small stature

病躯[byouku] sick body
躯幹[kukan] body
長躯[chouku] tall figure
痩躯[souku] lean (figure)