6 Letter Words That Start With O
490 words, each with its Scrabble tile value.
There are 490 six-letter words that start with O in our word list, about 2.2% of all 22,342 six-letter words. Use this page when a Scrabble rack, a crossword entry or a word-search clue gives you the first letter and little else. Words are grouped by their second letter, so you can jump straight to the pattern you need.
The most common openings are OU (77), OR (69), OB (34). The highest-scoring O word by tile value is ozzies at 24 points, and 76 words on this page contain a repeated letter.
Looking for the reverse? See 6 Letter Words That End With O.
Top-scoring words
- ozzies
- offkey
- ozekis
- oozily
- oxbows
All 490 words
OA 10 words
- oafish
- oakers
- oakier
- oakies
- oakums
- oarage
- oarier
- oaring
- oaters
- oatier
OB 34 words
- obangs
- obdure
- obeahs
- obeche
- obeism
- obelia
- obelus
- obento
- obeser
- obeyed
- obeyer
- obiing
- obiism
- obital
- obiter
- object
- objets
- objure
- oblast
- oblate
- oblige
- oblong
- oboist
- oboles
- obolus
- obsess
- obsign
- obtain
- obtect
- obtend
- obtest
- obtund
- obtuse
- obvert
OC 34 words
- occams
- occamy
- occies
- occult
- occupy
- occurs
- oceans
- ocelli
- ocelot
- ochers
- ochery
- ochone
- ochrea
- ochred
- ochres
- ochrey
- ocicat
- ockers
- ocreae
- octads
- octals
- octane
- octans
- octant
- octave
- octavo
- octets
- octett
- octopi
- octroi
- octuor
- octyls
- ocular
- oculus
OD 12 words
- oddest
- oddish
- oddity
- odeons
- odeums
- odious
- odisms
- odists
- odiums
- odored
- odours
- odyles
OE 3 words
- oecist
- oedema
- oeuvre
OF 13 words
- offals
- offcut
- offend
- offers
- office
- offies
- offing
- offish
- offkey
- offput
- offset
- oflags
- oftest
OG 11 words
- ogamic
- ogdoad
- oggins
- oghams
- ogival
- ogives
- oglers
- ogling
- ogress
- ogrish
- ogrism
OH 1 word
- ohmage
OI 17 words
- oidium
- oikist
- oilcan
- oilcup
- oilers
- oilery
- oilgas
- oilier
- oilily
- oiling
- oillet
- oilman
- oilmen
- oilnut
- oilway
- oinked
- ointed
OJ 1 word
- ojimes
OK 2 words
- okapis
- okayed
OL 18 words
- oldens
- oldest
- oldies
- oldish
- oleate
- olefin
- oleine
- oleins
- oleums
- olfact
- olingo
- oliver
- olives
- olivet
- ollamh
- ollavs
- ollers
- ollies
OM 14 words
- omasal
- omasum
- ombers
- ombres
- omegas
- omelet
- omened
- omenta
- omerta
- omigod
- omlahs
- omnify
- omnium
- omrahs
ON 27 words
- onager
- onagri
- onbeat
- oncers
- oncome
- oncost
- ondine
- onding
- oneyer
- oneyre
- onfall
- onflow
- onions
- oniony
- oniric
- oniums
- onlays
- online
- onload
- onning
- onrush
- onsets
- onside
- onuses
- onward
- onycha
- onyxes
OO 26 words
- oobits
- oocyst
- oocyte
- oodles
- oofier
- oogamy
- oogeny
- oohing
- ooidal
- oolite
- oolith
- oology
- oolong
- oomiac
- oomiak
- oompah
- oomphs
- ooping
- oorali
- oorial
- oorier
- oosier
- ootids
- oozier
- oozily
- oozing
OP 27 words
- opaled
- opaque
- opcode
- opened
- opener
- openly
- opepes
- operas
- operon
- ophite
- opiate
- opined
- opines
- opioid
- opiums
- oppose
- oppugn
- opsins
- optant
- opters
- optics
- optima
- optime
- opting
- option
- opulus
- opuses
OR 69 words
- orache
- oracle
- orally
- orange
- orangs
- orangy
- orants
- oraria
- orated
- orates
- orator
- orbier
- orbing
- orbita
- orbits
- orbity
- orcein
- orchat
- orchel
- orchid
- orchil
- orchis
- orcine
- orcins
- ordain
- ordeal
- orders
- ordure
- oreads
- oreide
- orexin
- orexis
- orfray
- organa
- organs
- orgeat
- orgiac
- orgias
- orgies
- orgone
- orgues
- oribis
- oriels
- orient
- orifex
- origan
- origin
- orihou
- oriole
- orisha
- orison
- orixas
- orlons
- orlops
- ormers
- ormolu
- ornate
- ornery
- orogen
- oroide
- orphan
- orphic
- orpine
- orpins
- orrery
- orrice
- orthos
- orvals
- oryxes
OS 25 words
- oscars
- oscine
- oscula
- oscule
- osetra
- oshacs
- osiers
- osiery
- osmate
- osmics
- osmium
- osmole
- osmols
- osmose
- osmous
- osmund
- osprey
- ossein
- ossify
- osteal
- ostent
- ostial
- ostium
- ostler
- ostomy
OT 8 words
- otalgy
- others
- otiose
- otitic
- otitis
- ottars
- ottava
- otters
OU 77 words
- oubaas
- oubits
- ouched
- ouches
- ouchts
- oughly
- oughts
- ouglie
- ouijas
- oulder
- oulong
- ounces
- ouphes
- ouping
- ourali
- ourang
- ourari
- ourebi
- ourier
- ousels
- ousted
- ouster
- outact
- outadd
- outage
- outask
- outate
- outbar
- outbeg
- outbid
- outbox
- outbuy
- outbye
- outcry
- outdid
- outeat
- outers
- outfit
- outfly
- outfox
- outgas
- outgun
- outher
- outhit
- outing
- outjet
- outjut
- outlaw
- outlay
- outled
- outler
- outlet
- outlie
- outman
- output
- outran
- outred
- outrig
- outros
- outrow
- outrun
- outsat
- outsaw
- outsay
- outsee
- outset
- outsin
- outsit
- outsum
- outtop
- outvie
- outwar
- outwin
- outwit
- outwon
- ouvert
- ouzels
OV 19 words
- ovally
- ovated
- ovates
- ovator
- ovened
- overby
- overdo
- overed
- overgo
- overly
- ovibos
- ovines
- ovisac
- ovists
- ovoids
- ovolos
- ovonic
- ovular
- ovules
OW 12 words
- owches
- owelty
- owerby
- owlers
- owlery
- owlets
- owlier
- owling
- owlish
- owners
- owning
- owrier
OX 21 words
- oxalic
- oxalis
- oxbows
- oxcart
- oxeyes
- oxford
- oxgang
- oxgate
- oxhead
- oxhide
- oxides
- oxidic
- oximes
- oxland
- oxlike
- oxlips
- oxslip
- oxtail
- oxters
- oxygen
- oxymel
OY 3 words
- oyeses
- oyezes
- oyster
OZ 6 words
- ozaena
- ozalid
- ozekis
- ozones
- ozonic
- ozzies
Questions about 6 letter words starting with O
How many 6 letter words start with O?
Our list has 490 six-letter words that start with O, or 2.2% of all six-letter words in the list.
What is the highest-scoring 6 letter word starting with O?
By standard English tile values it is ozzies, worth 24 points. Premium board squares are not counted.
Which letter most often follows O in a 6 letter word?
U is the most common second letter, appearing in 77 words that start with O.
How do I find 6 letter words that start with O and end with a certain letter?
Put O in the first tile of the word finder and your ending letter in the sixth tile. Add known letters elsewhere to narrow it further.
Last updated October 12, 2026. Method and word-list source are explained on the About page.