From Longman Dictionary of Contemporary Englishfranking machineˈfranking maˌchine noun [countable] British English TCMa machine used by businesses that puts a mark on letters and packages to show that postage has been paid SYN postage meter American English → frank
Examples from the Corpus
franking machine• Describe the purpose and use of a franking machine. 5.• A control card showing the readings of the meter of the franking machine must also be tendered to the post office.From Longman Business Dictionaryfranking machineˈfranking maˌchine British EnglishOFFICE a machine that prints a special sign on envelopes to show that the cost of sending them by mail has been paidSYNcancellation machine American English → machine 