upweight noun 1verb 1forms 3 noun1 •The amount of weight (in grams) a piano key will lift back up from its depressed position.Piano technicians have to measurements at their disposal for measuring touchweight: downweight and upweight. Downweight and upweight are measured in grams. — 2004 verb1 •To give a greater weight (or importance) to. formsupweighted · upweighting · upweights
