'franking privilege' definitions:

Definition of 'franking privilege'

From: GCIDE
  • Frank \Frank\, n. [See Frank, a.] The privilege of sending letters or other mail matter, free of postage, or without charge; also, the sign, mark, or signature denoting that a letter or other mail matter is to go free of postage. Called also the franking privilege. [1913 Webster +PJC]
  • I have said so much, that, if I had not a frank, I must burn my letter and begin again. --Cowper. [1913 Webster]