fell in WordNet English dictionary

1. (of persons or their actions) able or disposed to inflict pain or suffering
   "a barbarous crime"; "brutal beatings"; "cruel tortures"; "Stalin's roughshod treatment of the kulaks"; "a savage slap"; "vicious kicks"
   barbarous  brutal  cruel  fell  roughshod  savage  vicious 
   

1. cause to fall by or as if by delivering a blow
   "strike down a tree"; "Lightning struck down the hikers"
   fell  drop  strike down  cut down 
   
2. sew a seam by folding the edges
   fell 
   
3. pass away rapidly
   "Time flies like an arrow"; "Time fleeing beneath him"
   fly  fell  vanish 
   

1. the act of felling something (as a tree)
   fell 
   
2. seam made by turning under or folding together and stitching the seamed materials to avoid rough edges
   fell  felled seam 
   
3. the dressed skin of an animal (especially a large animal)
   hide  fell