WordNet sense 1 (cut with sweeping strokes; as with an ax or machete):

slash

WordNet sense 2 (cut with a blade or mower):

mow, mow

WordNet sense 3 (cause to fall by or as if by delivering a blow):

drop, fell, strike down

WordNet sense 4 (cause to come or go down):

down, push down, pull down

WordNet sense 5 (intercept (a player)):

cut out

WordNet sense 6 (cut down on; make a reduction in):

cut, reduce, trim, bring down, cut back, trim back, trim down