Words: franking frank
Part of speech: n
Definition: device or marking such as postage stamp, printed or stamped impressions, codings, labels, manuscript writings, or any other authorized form of markings affixed or applied to mails to qualify them to be postally serviced.
Example: Prior to the establishment of the UPU in 1874, international mails sometimes bore mixed franking before the world's postal services universally agreed to deliver international mails bearing only the franking of the country of origin.