"What to do to a deal or an envelope" NYT crossword answer is:
SEAL (4 letters length)The answer for "What to do to a deal or an envelope" crossword clue is listed above to help you solve the puzzle you are currently working on.
To solve the crossword clue "What to do to a deal or an envelope" from the New York Times (October 2, 2023), the answer is "seal." Sealing a deal or an envelope is a common practice used to ensure that the contents remain secure and private. Sealing a deal or envelope can be done with either wax or adhesive tape, depending on the desired level of security.