Is “Frank” a Scrabble word?

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

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

1.To place a frank on an envelope.

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

3.To send by public conveyance free of expense.

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

“May I be frank with you?”

2.Unmistakable, clinically obvious, self-evident

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

3.Unbounded by restrictions, limitations, etc.; free.