RegEx for duplicate words (I'm not familiar withRegEx)
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 Hello, could some tell me how to find and delete duplicate words with RegEx? I have a file with several thousand words. The words are grouped, that means the heading in one line. The following group members are indented with a tab - one indented word per line. Now I have a list of words that I want to delete from this grouped file. I copied this list into the file with the grouped words. That means, at the end of the document are several words that are not indented with a tab - one word per line. I need to delete the duplicate words (both words). Only exacte matches need to be deleted. 
 I could search for each word by hand, but this would take me days. I am not familiar with regex, but I know that there should be a simple solution for this.Is there someone who could help me? Please let me know, if you need further information. 
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 don’t copy the list of words into the document. 
 Copy it into the find what field like this\b(word1|word3|word5|word7|word8...)\bleave replace empty and check regular expression. Cheers 
 Claudia
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 Thank you! 
