Open Dictionary

Octopi

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English

Noun

octopi

An incorrect plural form of octopus.

Etymology

The -i plural comes from the mistaken belief that octopus is a Latin second declension noun. In fact, it belongs to the Latin third declension. The usual plural is octopuses, and octopodes is the latin plural, which is also correct.

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WordNet Definitions

The noun "octopus" has two senses:

octopus

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