The state of being frank; candour; honesty.

plural of frankness

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

(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 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.

A hot dog or sausage.

(UK) The grey heron.

A pigsty.

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

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