grand action

A pianoforte action, in which three features are combined: (1) A hammer to strike the string; (2) a hopper to elevate the hammer, and then, escaping therefrom, leave the latter instantly to fall away from the string, independent ly of the position of the key; and (3) a check to catch the hammer and prevent rebounding. Grand Army of the Republic, s . An organized a ociation of men who served in the Union army or navy during the Civil war. It has branches, called Posts , all over this country.