To place a frank on an envelope. / To exempt from charge for postage, as a letter, package, or packet, etc. / To send by public conveyance free of expense.

honest, especially in a manner that seems slightly blunt; candid; not reserved or disguised. / (medicine) unmistakable, clinically obvious, self-evident

(historical) Obsolete form of franc, former French coins, moneys of account, and currency.

(uncountable) Free postage, a right exercised by governments (usually with definite article). / (countable) The notice on an envelope where a stamp would normally be found.

To shut up in a frank or sty; to pen up; hence, to cram; to fatten.

The state of being frank; candour; honesty.

simple past tense and past participle of frank

(countable) A 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.

present participle of frank

plural of frankness