cut down in WordNet English dictionary

1. cut down on; make a reduction in
   "reduce your daily fat intake"; "The employer wants to cut back health benefits"
   reduce  cut down  cut back  trim  trim down  trim back  cut  bring down 
   
2. intercept (a player)
   cut down  cut out 
   
3. cause to come or go down
   "The policeman downed the heavily armed suspect"; "The mugger knocked down the old lady after she refused to hand over her wallet"
   down  knock down  cut down  push down  pull down 
   
4. cut with a blade or mower
   "mow the grass"
   mow  cut down 
   
5. 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 
   
6. cut with sweeping strokes; as with an ax or machete
   slash  cut down 
   

cut down in English Wiktionary