At the end of a document, I have an index. In there, I have Human and Humans. I would like to have both in Human(s). Labeling an index to be different than the actual word we selected to be marked for the entry is ok. What I would like to know is how to associate more than one word (spelling of the word) in the same index. Most videos I have watched so far only cover the first part. I have not been able to find one which mentions how to do that. I have seen people talking about it. So, I assume there is a way.