Readers found hidden worlds.
Meaning: People who read books discovered new and exciting realms of imagination and knowledge.
Choice of Words: Readers are people who read books or other written material. Found means to come across something that was previously unknown or unseen. Hidden means concealed or not easily seen. Worlds are realms of existence. When you put these together, "Readers found hidden worlds" means that people who read books discovered new and exciting realms of imagination and knowledge.
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