Cetaceans refer to a group of aquatic mammals that include whales, dolphins, and porpoises. Understanding the synonyms for cetaceans is essential for clear communication and effective writing. Some of the synonyms for cetaceans include sea mammals, marine mammals, and oceanic mammals. Other useful terms include toothed whales, baleen whales, orcas, and humpback whales. Additionally, it is important to remember that not all marine mammals are classified as cetaceans, and so other synonyms for aquatic mammals, such as pinnipeds, can be used when referring to seals, sea lions, and walruses. By expanding our vocabulary to include a range of synonyms for cetaceans and other marine animals, we can communicate more precisely and effectively and promote greater understanding of the natural world.