WordNet sense 1 (the dressed skin of an animal (especially a large animal)):

hide

WordNet sense 2 (seam made by turning under or folding together and stitching the seamed materials to avoid rough edges):

felled seam

WordNet sense 3 (pass away rapidly):

fly, vanish

WordNet sense 4 ((of persons or their actions) able or disposed to inflict pain or suffering):

barbarous, brutal, cruel, roughshod, savage, vicious

WordNet sense 5 (lacking and reflecting lack of pity or compassion):

inhumane

WordNet sense 6 (cause to fall by or as if by delivering a blow):

drop, cut down, strike down