frank

1. frank (adj) — sense 1

Definition: Honest, especially in a manner that seems slightly blunt; candid; not reserved or disguised.

Example: May I be frank with you?

2. frank (adj) — sense 2

Definition: Unmistakable, clinically obvious, self-evident.

Example: The research probes whether treating pre-diabetes with metformin can prevent progression to frank diabetes.

3. frank (adj) — sense 3

Definition: Unbounded by restrictions, limitations, etc.; free.

Example: It is of frank gift.

4. frank (noun) — sense 4

Definition: Free postage, a right exercised by governments (usually with definite article).

Example: October 5, 1780, William Cowper, letter to Rev. William Unwin
I have said so much, that, if I had not a frank, I must burn my letter and begin again.

5. frank (noun) — sense 5

Definition: The notice on an envelope where a stamp would normally be found.

Example: But, although her friends were kind, Lady Anne was not easy; neither daughter made her appearance, nor did she receive a letter to account for their silence. She remembered, indeed, that Charles Penrhyn could not get franks now, and her daughters knew she would not pay postage; and she had commanded Helen to work night and day, saying, "surely they can give her common materials."

6. frank (verb) — sense 6

Definition: To place a frank on an envelope.

Example: It will be so ridiculous to see all his letters directed to him with an M.P.—But do you know, he says, he will never frank for me?

7. frank (verb) — sense 7

Definition: To exempt from charge for postage, as a letter, package, or packet, etc.

8. frank (verb) — sense 8

Definition: To send by public conveyance free of expense.