Sth Meaning Left Find Power Cars Oil Reserves

Meaning: If you use up something, you use all of it and have none left over.

• use up sth Do you think we'll find a new way to power cars before we use up all our oil reserves?
  
  
• use sth up I can't get any more sick days off work. I've already used them all up.
  
  

Nouns often used as objects with use up: resources, reserves, supplies, stocks, time