Octopus Party: Octopi or Octopuses?

Octopi vs. Octopuses

Many people feel confused about whether to say “octopi” or “octopuses.” Both words mean more than one octopus, but they come from different histories.

History of the Words

“Octopus” is from a Greek word. The word “octopi” looks like a Latin word. Some people think it is right because it ends in “us.” But “octopuses” is how people change it in English.

How to Use Them

“Octopuses” is the right word in English. Most books and teachers say “octopuses.” “Octopi” is less common, but some people still use it. They think it sounds fancy.

Trick to Remember the Difference

To remember which word to use, think of “octopus” as an English word. Then just add “es” like cats or dogs. So, use “octopuses” to be right.

Examples of “Octopi”

• The aquarium has many octopi to see.
• Some old books talk about octopi in the ocean.
• My friend thinks octopi sounds smart.
• In the museum, we saw pictures of octopi.
• They are learning about how octopi move.

Examples of “Octopuses”

• The zoo has three new octopuses.
• We read a story about octopuses in class.
• Octopuses can change color to hide.
• Scientists study octopuses to learn more.
• Octopuses have eight arms to catch prey.

Summary of Usage

Most people use “octopuses” because it follows English rules. “Octopi” is less common and comes from a mix-up with Latin. Remember to use “octopuses” for school and writing.