Perhaps you haven't explained what you wanted the code to do.
The original compared the Words in the first column with the contents of the second cell. I changed it so it compares the Words in the first column with the contents of the rest of the row. It isn't comparing every word in every row to see if there is a duplicate somewhere.
Also, your sample code is predominantly numbers and the code is treating a number like 84,222,076 as five separate words (84 , 222 , 076). It then decides whether any of those five 'words' appear on the rest of the row.
If your requirements are for any repeats, anywhere in a row then a different methodology would work. Take a look at the macro I just did on another thread. That process could be adapted to work on numbers in a row instead of sentences in a document.
https://www.msofficeforums.com/word/...sentenses.html