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Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
The Witch-king plays a major role in the films, wounding Frodo at Weathertop in Fellowship of the Ring and leading the assault against Gondor in The Return of the King -- ultimately setting up his final fate, falling during a battle to Éowyn.
Source: https://www.cbr.com/tom-bombadil-witch-king-lord-of-the-rings-theory/