5 letter words starting with O
O starts 181 five letter words. Like the other vowels it is a weak opener, but it has a habit the others do not: a large share of these words carry a second O, which makes them easy to spot once you know to look.
Have the letters but not the word?
What five letter words start with O?
There are 181. The ones a solver reaches for are OTHER, OWNER, OASIS, OPTIC and OZONE. Beyond those the list turns quickly to borrowings and technical terms, which is what happens with every vowel at this length.
The full list
Alphabetical, grouped by second letter, which is usually the fastest way to find what you want.
OA words 10
- oaken
- oakum
- oared
- oases
- oasis
- oasts
- oaten
- oater
- oaths
- oaves
OB words 11
- obeah
- obeli
- obese
- obeys
- obias
- obits
- objet
- oboes
- obole
- oboli
- obols
OC words 13
- occur
- ocean
- ocher
- ochre
- ochry
- ocker
- ocrea
- octad
- octal
- octan
- octet
- octyl
- oculi
OD words 10
- odder
- oddly
- odeon
- odeum
- odist
- odium
- odors
- odour
- odyle
- odyls
OF words 6
- ofays
- offal
- offed
- offer
- often
- ofter
OG words 8
- ogams
- ogees
- ogham
- ogive
- ogled
- ogler
- ogles
- ogres
OH words 3
- ohias
- ohing
- ohmic
OI words 4
- oidia
- oiled
- oiler
- oinks
OK words 4
- okapi
- okays
- okehs
- okras
OL words 11
- olden
- older
- oldie
- oleic
- olein
- oleos
- oleum
- olios
- olive
- ollas
- ology
OM words 7
- omasa
- omber
- ombre
- omega
- omens
- omers
- omits
ON words 5
- onery
- onion
- onium
- onset
- ontic
OO words 6
- oohed
- oomph
- oorie
- ootid
- oozed
- oozes
OP words 10
- opahs
- opals
- opens
- opera
- opine
- oping
- opium
- opsin
- opted
- optic
OR words 23
- orach
- orals
- orang
- orate
- orbed
- orbit
- orcas
- orcin
- order
- ordos
- oread
- organ
- orgic
- oribi
- oriel
- orles
- orlop
- ormer
- ornis
- orpin
- orris
- ortho
- orzos
OS words 5
- osier
- osmic
- osmol
- ossia
- ostia
OT words 4
- other
- ottar
- otter
- ottos
OU words 15
- ought
- ounce
- ouphe
- ouphs
- ourie
- ousel
- ousts
- outby
- outdo
- outed
- outer
- outgo
- outre
- ouzel
- ouzos
OV words 11
- ovals
- ovary
- ovate
- ovens
- overs
- overt
- ovine
- ovoid
- ovoli
- ovolo
- ovule
OW words 5
- owing
- owlet
- owned
- owner
- owsen
OX words 8
- oxbow
- oxeye
- oxide
- oxids
- oxime
- oxims
- oxlip
- oxter
OY words 1
- oyers
OZ words 1
- ozone
52 of these are common enough to be in everyday use. Turn on the filter above to hide the rest.
The double O words are the signature of this page: ODEON, OVOLO, ORLOP. If a puzzle has confirmed two Os in a five letter word, this list is short enough that the answer is usually visible in a single glance down the column.
52 of the 181 entries here are common vocabulary. The remainder run to the antique, ODEON, OGHAM, ORNIS, which are worth a look before a game precisely because no opponent will expect them.
Other word lengths
The same complete list treatment for every length from 2 to 15 letters.
Five letter words by starting letter
Each letter has its own page with the full list and notes on how that letter behaves at five letters.