English

Definition of franking machine noun from the Oxford Advanced Learner's Dictionary

 

franking machine

 noun
noun
BrE BrE//ˈfræŋkɪŋ məʃiːn//
 
; NAmE NAmE//ˈfræŋkɪŋ məʃiːn//
 
(especially British English) (usually North American English postage meter)
 
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a machine that prints an official mark on a letter to show that the cost of posting it has been paid, or does not need to be paid