Xiphias gladius refers to the scientific name for a swordfish, and there are several synonyms for this unique fish. One common synonym is the broadbill, owing to the large sword-like appendage on its face. Another synonym is the Atlantic swordfish, which is found in the Atlantic Ocean and shares many of the same features as the swordfish. Additionally, the term simply "swordfish" is often used to refer to xiphias gladius. These synonyms highlight the distinctive appearance and behavior of this particular species, making it easy to identify and study for those interested in marine biology. Whatever you choose to call it, the swordfish remains an awe-inspiring creature of the deep.