Key words, phrases, taglines, and sounds are the third track of dialogue. These are words with the potential to carry special meaning, symbolically or thematically, the way a symphony uses certain instruments, such as the triangle, here and there for emphasis. The trick to building this meaning is to have your characters say the word many more times than normal. The repetition, especially in multiple contexts, has a cumulative effect on the audience. A tagline is a single line of dialogue that you repeat many times over the course of the story. Every time you use it, it gains new meaning until
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