mill in WordNet English dictionary

1. a plant consisting of one or more buildings with facilities for manufacturing
   factory  mill  manufacturing plant  manufactory 
   
2. the act of grinding to a powder or dust
   grind  mill  pulverization  pulverisation 
   
3. machinery that processes materials by grinding or crushing
   mill  grinder  milling machinery 
   

1. grind with a mill
   "mill grain"
   mill 
   
2. produce a ridge around the edge of
   "mill a coin"
   mill 
   
3. roll out (metal) with a rolling machine
   mill 
   
4. move about in a confused manner
   mill  mill about  mill around