Code word for the letter b?

There isn't one definitive "code word" for the letter B. It depends on the context and what kind of code you're using.

Here are a few examples:

Simple Substitution:

* "C" (the letter after B in the alphabet)

* "Bravo" (NATO phonetic alphabet)

More complex codes:

* "Blue" (a common color association)

* "Book" (a word starting with B)

To get a specific code word for B, you'll need to provide more information:

* What type of code are you using? (e.g., simple substitution, pig latin, etc.)

* What is the purpose of the code? (e.g., secret messages, puzzles, etc.)

Let me know if you can give me more details!