10 Letter Nouns Starting with OCT

This list gathers 11 English 10 letter nouns that start with OCT, such as Octahedron, Octocopter, Octothorpe, Octopamine, Octodecimo, Octogenary and Octaploidy. Use the sorting controls below to organize entries by length, or consult our noun grammar guide to review pluralization and capitalization rules.

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Starts with OCTA3 words
octahedron
octaploidy
octandrian
Starts with OCTO8 words
octocopter
octothorpe
octopamine
octodecimo
octogenary
octonarius
octopusher
octonarian

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