word searching

I have tried looking this up and I am probably totally missing it. But is there a way to do an in doc search and highlight of a word? Like, say I want to see how many times I used the word “just”? I am frustrated right now at not finding what I am trying to figure out. I figured I would ask. Sorry if this is a question that has been asked. But I am at a loss. Going through the manual and the topic board here, at this point my eyes have started to glaze over. I know that the answer is here, but I just can’t seem to find the magic words that will give me what I am looking for. Thanks a million, everyone.