Main Entry: ²frank

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 \ˈfraŋ-kə-bəl\ adjective

— frank·er noun