trimming in WordNet English dictionary

1. cutting down to the desired size or shape
   trim  trimming  clipping 
   
2. a decoration or adornment on a garment
   "the trimming on a hat"; "the trim on a shirt"
   trimming  trim  passementerie 
   
3. the act of adding decoration
   "the children had to be in bed before it was time for the trimming of the tree"
   trimming