FRANC, com. law. The name of a French coin. Five franc pieces, when not of less fineness than ten ounces and sixteen pennyweights in twelve ounces troy weight of standard silver, and weighing not less than three hundred and eighty-four grains each, are made a legal tender, at the rate of ninety-three cents each. Act of June 25, 1834, s. 1, 4 Sharsw. Cont. of Story's L. U. S. 2373.