Definition from Wiktionary, the free dictionary
Alternative forms 
- (transitive) To hold (something) out; to extend (something) forward.
- (idiomatic, often with for) To wait, or refuse in hopes of getting something better (from a negotiation, etc.)
- I am holding out for more money.
- How long has he been holding out?
- (idiomatic) To survive, endure.
- How long can they hold out without water?
- 2011 September 2, “Wales 2-1 Montenegro”, BBC:
- Stevan Jovetic gave Montenegro hope when he unleashed a pile-driver but Wales held out for a much-needed win.
- (idiomatic, usually with on) To withhold something.
- You've got a key! Why have you been holding out on me?
- (transitive) To set something aside or save it for later.
- Pack the boxes, but hold out a few blue ones for later.
- Alternative spelling of holdout..