1. Set or reduce to zero, especially a budget item or balance
   "The committee voted to zero out funding for the program"
    
2. (computing) fill a data structure or memory location with zeros
   "The program zeros out the array before processing new data"
    
3. Calibrate or adjust an instrument to a zero reading
   "The technician zeroed out the scale before weighing the samples"

Derived forms: zeroing out, zeroed out, zeroes out