WordWeb Online

1. Use (resources or materials) over time in order to function
   "this car uses up a lot of gas";
   - consume, eat up, eat, deplete, exhaust, run through, wipe out
    
2. Require (time or space)
   "It used up three hours to get to work this morning";
   - take, occupy

Derived forms: using up, used up, uses up

Type of: drop, expend, spend, use