A certain specified weight; especially, a legal standard consisting of an established number of ounces.
A British denomination of money of account, equivalent to twenty shillings sterling, and equal in value to about $4.86. There is no coin known by this name, but the gold sovereign is of the same value.
The unit of measure of rail size is weight per yard. For example, a 3-foot (1 yard) length of 90-pound rail weighs 90 pounds. Rail currently rolled in the USA ranges from 112 to 145 pound. Lighter rail is still rolled in other countries.