Choose one alphabet that can be moved from either of the words to the other: LAMP and RAP in such a way that they both still form two meaningful words?

To solve the problem, we need to examine the two words—LAMP and RAP—and determine if moving one letter results in two meaningful words.

1. Identify Possible Letters to Move: The letters in LAMP are L, A, M, and P, while the letters in RAP are R, A, and P.

2. Testing Each Letter:

   • If we move L from LAMP to RAP, we get "AMP" and "LRAP," which are not meaningful.
   • If we move A from LAMP to RAP, we get "LMP" and "RAP," where "LMP" is not a valid word.
   • If we move M from LAMP to RAP, we get "LAP" and "RAP," both of which are meaningful words.
   • If we move P from LAMP to RAP, we get "LAM" and "RAP," which seems to work because "LAM" is a valid word.

3. Meaningful Words Formed: By moving M from LAMP to RAP, we successfully create two valid words:

   • LAMP becomes LAP
   • RAP becomes RAM

Therefore, the letter M can be moved from LAMP to RAP, allowing both to remain meaningful words.

Final Answer

Move the letter M from LAMP to RAP to form LAP and RAM.