The Word List
Searching Google for 'list of five letter words', I came across
https://www-cs-faculty.stanford.edu/~knuth/sgb-words.txt
by lucky accident.
Judging by the URL, that site belongs to Donald Knuth at Stanford University.
(A hard cover copy of his The Art of Computer Programming Volume 1 has held a place of pride in my stacks since the 1970s. Some books you never sell.)
After downloading the word file and uploading it into the Media folder, it is time to deal with file loading and general initialization ...
(A quick peek at the file in Notepad to check for surprises. No surprises.)
I admit a blunder here.
This would have been a good place to have upshifted all the text before splitting it at \n, so that the letters would match the .Text values in my keyboard. If you fail to plan, you plan to fail. I pay the price for my sloppiness later on, when I go to match letters between the word of the day and user guesses.