The correct answer is key ideas or key points. Key ideas are the ideas that are emphasized through repetition. These ideas are repeated because it needs to be emphasized in order to be understood clearly. Repeated ideas may include a word or phrases. In addition, repetition is also used to persuade or convince the readers.
That words would be
"Dummy" or "fraud" or "cheat"
Yes if you are writing something or acting it's very important
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