Frank To shut up in a frank or sty; to pen up; hence, to cram; to fatten.
Frank The common heron; -- so called from its note.
Frank Unbounded by restrictions, limitations, etc.; free.
Frank Free in uttering one's real sentiments; not reserved; using no disguise; candid; ingenuous; as, a frank nature, conversation, manner, etc.
Frank Liberal; generous; profuse.
Frank Unrestrained; loose; licentious; -- used in a bad sense.
Frank To send by public conveyance free of expense.
Frank To extempt from charge for postage, as a letter, package, or packet, etc.
Frank The privilege of sending letters or other mail matter, free of postage, or without charge; also, the sign, mark, or signature denoting that a letter or other mail matter is to free of postage.