What context can I use each word in?
Learn when and how to use these words with these examples!
cetacean
Example
The Blue Whale is the largest cetacean in the world. [cetacean: noun]
Example
Cetaceans are known for their ability to communicate using clicks, whistles, and songs. [cetacean: adjective]
porpoise
Example
We spotted a pod of porpoises swimming near the shore. [porpoises: noun]
Example
Porpoises are known for their playful behavior and acrobatic leaps. [porpoises: plural noun]
Good things to know
Which word is more common?
Cetacean is a more commonly used term in scientific and formal contexts when referring to marine mammals as a whole. Porpoise is a less common term and is typically used to specifically describe the smaller cetaceans belonging to the family Phocoenidae.
What’s the difference in the tone of formality between cetacean and porpoise?
Cetacean is a more formal term that is commonly used in scientific and academic settings. Porpoise, while less formal, can still be used in both formal and informal contexts when discussing specific types of small cetaceans.
