U. P. C.—United Presbyterian Church.
U. S.—United States.
u. s.—Ut supra or uti supra, as above.
U. S. A.—United States of America; United States Army.
U. S. M.—United States Mail; United States Marines.
U. S. M. A.—United States Military Academy.
U. S. N.—United States Navy.
U. S. N. A.—United States Naval Academy.
U. S. S.—United States Senate.