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The incorrect plural of the word 'octopus', using a Latin ending for a word ending in 'us', by replacing it with an 'i', as in 'octopi'.

In English, it is correct to say 'octopuses', first used by uneducated peasants who did not know of the word's Greek origin, however, it is still technically incorrect.

The word 'octopus' is Greek (octo=eight, pus=foot), therefor, it's ending should be a Greek ending. The Greek ending of the word 'octopus' is 'octopodes' (pronounced: Ock-Top-Oh-Dez).
Octopi is the number, eight multiplied by pi, so is 25.13274123...
Octopi by Octopodes December 10, 2010
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An incorrect pluralization of octopus. Widly accepted by the public, Octopi is the word that most people use. Some people will argue that the proper pluralization is Octopodes, however most biologists will agree that the correct pluralization is Octopuses. (Ref. Sciencs Mag; Vol 307, 25 March 2005)
The abillity of octopuses to escape from enclosures is widly known by keepers in all aquariums
octopi by Pacific Octopus May 8, 2005
Octa-pie
-noun
1. a woman who engages in promiscuous sexual
intercourse, usually for money; prostitute; harlot; skank
2. Diseased Slut
3. Over used whore
4. Vagina with tentacles
5. Havelock Whore
6. North Carolinian Woman
7. Tenta-Gyner
8. Tentapi
I haven't seen him since he went to North Carolina, I wonder if he was captured by an Octopi?
Octopi by Kylar Mayhem August 1, 2010
Probably the correct pluralisation of 'octopus'. Probably.
"Two octopi swam by. No, wait, octopuses. No, that sounds wrong. It's octopi. Yeah, definitely. Octopi."
octopi by Underscore November 11, 2003
"Yes, I would like to order octopi for our big party tonight."

"Is it octopuses or octopi?"
Octopi by Katie Marie Bell October 5, 2011
Octopi is a word Charles it's in the urban dictionary
Octopi is a word
Octopi by Technolife October 5, 2021
Octopi is a word Charles.
A group of octopuses is called octopi.
Octopi by Technolife October 5, 2021