Meaning of uptrade

up•trade

Pronunciation: (up-trād'), [key]
— -trad•ed, -trad•ing.
  1. to trade (a piece of equipment, car, etc.) for something similar but of greater value or quality: to uptrade one's stereo components.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.