a wrestler who weighs 154-172 pounds
a weight of 28 pounds; sometimes imposed as a handicap in a horse race (such as a steeple chase or hurdle race)
a professional boxer who weighs between 141 and 147 pounds
an amateur boxer who weighs no more than 148 pounds
A weight of 28 pounds (one of 40 pounds is called a heavy welterweight) sometimes imposed in addition to weight for age, chiefly in steeplechases and hurdle races.
A boxer or wrestler whose weight is intermediate between that of a lightweight and that of a middleweight.