Another word for will add one letter to the beginning?

The phrase "will add one letter to the beginning" is not a common phrase. It's possible that it's referring to a specific context, like a word game or a coding puzzle.

To help me understand, could you please provide:

* The full sentence or context where you saw this phrase.

* What is the goal of adding the letter? Is it to make a new word, change the meaning, or something else?

Once I have more information, I can provide you with a more accurate answer.