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.
Although it's unclear if the Red-Hair Pirates knew of the Gum-Gum Fruit's true nature or its presence aboard the escort ship, Shanks' connections to both the Celestial Dragons and Gol D. Roger hints that he was more than aware of its importance.
Source: https://www.cbr.com/one-piece-ace-gum-gum-devil-fruit/