to frank is a form of:

Frank



noun
1.
(signature on a letter of a person entitled to send ft free of postage charges) សញ្ញាអោយរួចថ្លៃ (ប្រៃណីយ៍) / តែម
adjective
1.
(open and honest, free from disguise or guile, candid, outspoken, sincere) ត្រង់, ស្មោះត្រង់
Example: It isn't always a good idea to give others your frank opinion
verbpast tense: franked ; past participle: franked ; present participle: franking ;
1.
(TRANSITIVE) (to mark a letter thus. -Frankenstein the title character in a novel by Mary Shelly, he creates a monster that destroys him, the monster, any creation which brings disaster or torment to its author) ដាក់សញ្ញាអោយរួចថ្លៃ (ប្រៃសណីយ៍) / តែម
2.
(បច្ចេកទេស) បុព្វសិទ្ធិក្នុងការបញ្ជូនសារ ស្មោះត្រង់
ENGLISH MEANING
noun
1.
The common heron; -- so called from its note.
2.
Unbounded by restrictions, limitations, etc.; free.
3.
Free in uttering one's real sentiments; not reserved; using no disguise; candid; ingenuous; as, a frank nature, conversation, manner, etc.
4.
Liberal; generous; profuse.
5.
Unrestrained; loose; licentious; -- used in a bad sense.
6.
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.
7.
A member of one of the German tribes that in the fifth century overran and conquered Gaul, and established the kingdom of France.
8.
A native or inhabitant of Western Europe; a European; -- a term used in the Levant.
9.
A French coin.
verbpast tense: franked ; past participle: franked ; present participle: franking ;
1.
(TRANSITIVE) To send by public conveyance free of expense.
2.
(TRANSITIVE) To extempt from charge for postage, as a letter, package, or packet, etc.
3.
(TRANSITIVE) To shut up in a frank or sty; to pen up; hence, to cram; to fatten.
1.
artless, blunt, bold, candid, direct, familiar, free, forthright, honest, open, outspoken, plan, sincere, straightforward, truthful
2.
fair, impartial, just, unbiased, uninhibited
1.
A pigsty