What is a octopus group called?

Answer 1

octopi

Octopi is not incorrect, but is not technically correct either. Octopi is Latin and is the correct plural of Octopus, but the word octopus is not Latin. It is a Greek word. And the correct plural of octopus in Greek is "octopedes". Now the real kicker is that even though it's a Greek word, any word that is used in the English language is now an English word. So the Greek or Latin plural is technically incorrect.

The official, proper pronunciation is -- octopuses.

Source: Merriam-Webster