1. A knot in wood or a protuberance on a tree
   "The carpenter had to work around the knags in the lumber"
    
2. A short, stubby branch or projection from a tree trunk
   "The old oak was covered in knags where branches had been cut"
    
3. A wooden peg used for hanging items
   "They hung their coats on the knags by the door"

Sounds like: nag

Derived forms: knags