The one that I've noticed the most is 'chagrin'.... I have noticed this word is used a lot! π³ However, I think only once or twice did I find it repetitive.. other times, it wasnt really that noticeable to me. She's not the only author who repeats words, everyone does that... sometimes there's just not a better word to use! Or other times, that's the only one you can think of... though I do wish that another word was used sometimes, though. Anyways... good observations! :)