Ok, imagine that you have a secret code that only you and your best friend know. You may use this code to talk to each other without anyone else understanding what you're saying. This secret code is like the true word.
Now, let's think about a storybook. When you read a storybook, you can imagine in your mind what is happening in the story. But sometimes, people may interpret the events in the story differently. For example, someone might think that a character is a hero, while another person may think that the same character is a villain. The true word is like the correct understanding of what is happening in the book.
In other words, the true word represents the most accurate and correct understanding of something. It is like a key that unlocks the actual meaning of events or ideas, even when different people may interpret them in different ways.