Potvalors refer to a type of whale that was hunted for its oil, bone, and meat. However, there are several synonyms for this word that are still used today. One of the most common synonyms is "beached whale," which refers to a whale that has washed up on shore and died. Another synonym is "whale carcass," which is used to describe the remains of a dead whale. "Sperm whale" is another synonym for potvalors, as this type of whale was one of the most commonly hunted for its oil. Finally, "cetacean" refers to any member of the whale family, including potvalors and other types of whales such as humpback and blue whales.