Words that start with OCT, grouped by length
- octocentenaries
- octingentenary
- octodecillions
- octingenaries
- octocentenary
- octodecillion
- octogenarians
- octosyllabics
- octosyllables
- octahedrally
- octahedrites
- octapeptides
- octaploidies
- octastichons
- octastichous
- octastrophic
- octillionths
- octogenarian
- octogenaries
- octopetalous
- octosepalous
- octostichous
- octosyllabic
- octosyllable
- octuplicates
- octachordal
- octagonally
- octahedrite
- octahedrons
- octanedioic
- octapeptide
- octastichon
- octennially
- octillionth
- octingenary
- octodecimos
- octohedrons
- octonarians
- octonocular
- octopushers
- octuplicate
- octachords
- octahedral
- octahedron
- octamerous
- octameters
- octandrian
- octandrous
- octangular
- octaploids
- octaploidy
- octapodies
- octarchies
- octastichs
- octastyles
- octavalent
- octillions
- octodecimo
- octogenary
- octogynous
- octohedron
- octonarian
- octonaries
- octonarius
- octoploids
- octopodans
- octopodous
- octopusher
- octopushes
- octostyles
- octothorps
- octachord
- octagonal
- octahedra
- octameter
- octangles
- octaploid
- octapodic
- octaroons
- octastich
- octastyle
- octennial
- octillion
- octohedra
- octonarii
- octoploid
- octopodan
- octopodes
- octopuses
- octoroons
- octostyle
- octothorp
- octuplets
- octupling
- octagons
- octangle
- octanols
- octantal
- octaplas
- octapody
- octarchy
- octaroon
- octettes
- octonary
- octopods
- octopush
- octoroon
- octupled
- octuples
- octuplet
- octuplex
- octadic
- octagon
- octanes
- octanol
- octants
- octapla
- octaval
- octaves
- octavos
- octette
- octetts
- octofid
- octopod
- octopus
- octrois
- octuors
- octuple
- octuply
- octads
- octals
- octane
- octans
- octant
- octave
- octavo
- octets
- octett
- octopi
- octroi
- octuor
- octyls
- octad
- octal
- octan
- octas
- octet
- octyl
- octa