"fells" in the noun sense
1. hide, fell
the dressed skin of an animal (especially a large animal)
2. fell, felled seam
seam made by turning under or folding together and stitching the seamed materials to avoid rough edges
the act of felling something (as a tree)
"fells" in the verb sense
1. fell, drop, strike down, cut down
cause to fall by or as if by delivering a blow
"strike down a tree"
"Lightning struck down the hikers"
2. fly, fell, vanish
pass away rapidly
"Time flies like an arrow"
"Time fleeing beneath him"
sew a seam by folding the edges
Source: WordNet® (An amazing lexical database of English)
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