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.
Then they must talk to modrons in a specific location to learn that it's a portal.
Source: https://www.cbr.com/rare-secret-video-game-characters/