Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Included alongside the Jedi Holocron and Sith Holocron in the film’s accompanying visual dictionary, the so-called Great Holocron made its canonical debut in a 2015 reference book.
Source: https://gamerant.com/star-wars-what-is-holocron-explained/