n.
Function: transitive verb
Date: 1708
1 a : to mark (a piece of mail) with an official signature or sign indicating the right of the sender to free mailing b : to mail free c : to affix to (mail) a stamp or a marking indicating the payment of postage
2 : to enable to pass or go freely or easily
– frank · able \ ' fra ŋ -k ə -b ə l \ adjective
– frank · er noun