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thumb|right|Sherlock Holmes wrestling against his archenemy Professor James Moriarty.
thumb|right|Sherlock Holmes wrestling against his archenemy Professor James Moriarty.
In literature, an archenemy (sometimes spelled as arch-enemy) or archnemesis is the main enemy of the protagonist—or sometimes, one of the other main characters—appearing as the most prominent and most-known enemy of the hero.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).