Concrete Nouns That Start with OCT

Find 42 valid English concrete nouns starting with OCT, including Octopus, Octagon, Octane, Octet, Octogenarian, Octavo and Octahedron. Check definitions and usage below, or visit our noun grammar guide to compare physical and abstract noun usage.

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Starts with OCTA
18 words
octagon
octane
octavo
octahedron
octant
octanol
octahedrite
octapeptide
octad
octans
octaplas
octastyle
octastich
octachord
octapla
octakishexahedron
octastichon
octandrian
Starts with OCTE
1 words
octet
Starts with OCTO
18 words
octopus
octogenarian
octothorp
octocopter
octothorpe
octoroon
octopod
octopamine
octopoid
octoploid
octosyllable
octodecimo
octofoil
octopodan
octostyle
octogenary
octopusher
octonarian
Starts with OCTU
4 words
octuplet
octuplex
octuplicate
octuor
Starts with OCTY
1 words
octyl

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