5 Letter Words Starting with O (400+ English Words)

If you are looking for a comprehensive list of 5 letter words starting with O, you have come to the right place. This reference covers different categories, such as words starting with “Oa,” “Ob,” “Oc,” and other combinations like “Oe” and “Of.”

Each section explores words beginning with these combinations and provides meanings, making this an invaluable resource for expanding your vocabulary. Check out the images and related resources for more insights.

5 Letter Words Starting with O

5 Letter Words Starting with O
5 Letter Words Starting with O – Created by 7ESL

What Are 5 Letter Words that Start with O?

There are only a few letters in the English vocabulary which has words that are repeated twice in a row and the letter O is one of them. Oohed, oomph, and oozes are just a few of the 5 letter words that start with the letter O which will fascinate you as you learn new interesting words.

Words that contain 5 letters are called “5 Letter Words.”

Here is an extensive list of 5 letter words starting with O.

5 Letter Words Starting with Oa

  • Oafos
  • Oaked
  • Oaken
  • Oaker
  • Oakes
  • Oakum
  • Oared
  • Oarer
  • Oasal
  • Oases
  • Oasis
  • Oasts
  • Oaten
  • Oater
  • Oaths
  • Oaves

5 Letter Words Starting with Ob

  • Obama
  • Obang
  • Obbos
  • Obeah
  • Obeli
  • Obert
  • Obese
  • Obeys
  • Obias
  • Obied
  • Obies
  • Obiit
  • Obits
  • Objet
  • Oboes
  • Obole
  • Oboli
  • Obols

5 Letter Words Starting with Oc

  • Occam
  • Occur
  • Ocean
  • Ocher
  • Oches
  • Ochre
  • Ochry
  • Ocker
  • Ocote
  • Ocrea
  • Octad
  • Octal
  • Octan
  • Octas
  • Octel
  • Octet
  • Octic
  • Octli
  • Octyl
  • Oculi

5 Letter Words Starting with Od

  • Odahs
  • Odals
  • Odder
  • Oddly
  • Odeon
  • Odesa
  • Odeum
  • Odias
  • Odism
  • Odist
  • Odium
  • Odoom
  • Odors
  • Odour
  • Odsos
  • Odums
  • Odyle
  • Odyls

5 Letter Words Starting with Oe, Of

  • Oenus
  • Offal
  • Offed
  • Offer
  • Offie
  • Offre
  • Ofgem
  • Oflag
  • Oflot
  • Often
  • Ofter
  • Ofuro
5 Letter Words that Start with O
5 Letter Words that Start with O – Created by 7ESL

5 Letter Words Starting with Og

  • Ogams
  • Ogden
  • Ogeed
  • Ogees
  • Ogema
  • Oggin
  • Ogham
  • Oghuz
  • Ogive
  • Ogled
  • Ogler
  • Ogles
  • Ogmic
  • Ogoni
  • Ogres

5 Letter Words Starting with Oh

  • Ohana
  • Ohelo
  • Ohiah
  • Ohias
  • Ohing
  • Ohmic
  • Ohone
  • Ohrid

5 Letter Words Starting with Oi, Oj

  • Oicks
  • Oidia
  • Oiled
  • Oiler
  • Oilet
  • Oinks
  • Oints
  • Oiran
  • Ojime

5 Letter Words Starting with Ok

  • Okapi
  • Okara
  • Okays
  • Okehs
  • Okies
  • Okina
  • Oking
  • Okole
  • Okras
  • Okrug
  • Oktas

5 Letter Words Starting with Ol

  • Olate
  • Olden
  • Older
  • Oldie
  • Oldly
  • Olehs
  • Oleic
  • Olein
  • Olent
  • Oleos
  • Oleum
  • Oleyl
  • Oligo
  • Olios
  • Oliva
  • Olive
  • Ollas
  • Ollav
  • Oller
  • Ollie
  • Olmec
  • Olney
  • Ology
  • Olona
  • Olpae
  • Olpes

5 Letter Words Starting with Om

  • Omagh
  • Omaha
  • Omake
  • Omani
  • Omasa
  • Omber
  • Ombre
  • Ombud
  • Ombus
  • Omdah
  • Omdas
  • Omdda
  • Omdeh
  • Omees
  • Omega
  • Omens
  • Omers
  • Omiai
  • Omics
  • Omits
  • Omlah
  • Ommel
  • Ommin
  • Omnes
  • Omovs
  • Omrah
  • Omuls

5 Letter Words Starting with On

  • Oncer
  • Onces
  • Oncet
  • Oncus
  • Ondes
  • Ondol
  • Onega
  • Onego
  • Onely
  • Oners
  • Onery
  • Onest
  • Ongee
  • Ongon
  • Onice
  • Onion
  • Onium
  • Onkus
  • Onlap
  • Onlay
  • Onmun
  • Onned
  • Onsen
  • Onset
  • Ontal
  • Ontic
  • Ontos
  • Onyon

5 Letter Words Starting with Oo

  • Ooaas
  • Oobit
  • Oohed
  • Ooids
  • Oojah
  • Oomph
  • Oonts
  • Oopak
  • Ooped
  • Oopsy
  • Oorie
  • Oorya
  • Ooses
  • Ootid
  • Ooyah
  • Oozed
  • Oozes
  • Oozie
  • Oozle

5 Letter Words Starting with Op

  • Opahs
  • Opake
  • Opals
  • Opens
  • Opepe
  • Opera
  • Opers
  • Opery
  • Opgaf
  • Ophir
  • Opihi
  • Opine
  • Oping
  • Opium
  • Opole
  • Oppos
  • Oprah
  • Opsat
  • Opsin
  • Opsit
  • Opted
  • Opter
  • Optic
  • Opzit

5 Letter Words Starting with Or

  • Orach
  • Oracy
  • Orals
  • Orang
  • Orans
  • Orant
  • Orate
  • Orbat
  • Orbed
  • Orbic
  • Orbit
  • Orcas
  • Orcin
  • Orcus
  • Order
  • Ordie
  • Ordos
  • Ordre
  • Oread
  • Oreos
  • Orfed
  • Orfes
  • Orful
  • Organ
  • Orgel
  • Orgia
  • Orgic
  • Orgue
  • Orgul
  • Oribi
  • Oriel
  • Origo
  • Orins
  • Orion
  • Orixa
  • Oriya
  • Orles
  • Orlon
  • Orlop
  • Ormer
  • Ornee
  • Ornis
  • Oromo
  • Orped
  • Orpin
  • Orris
  • Ortet
  • Ortho
  • Orval
  • Oryol
  • Oryza
  • Orzos

5 Letter Words Starting with Os

  • Osage
  • Osaka
  • Osars
  • Oscan
  • Oscar
  • Osete
  • Osetr
  • Oseys
  • Oshac
  • Osier
  • Oskin
  • Oslin
  • Osmic
  • Osmol
  • Osone
  • Osseo
  • Osset
  • Ossia
  • Ostia
  • Ostic
  • Ostro

5 Letter Words Starting with Ot

  • Otago
  • Otaku
  • Otary
  • Other
  • Othyl
  • Otium
  • Otomi
  • Ottar
  • Otter
  • Ottos

5 Letter Words Starting with Ou

  • Oubit
  • Ouche
  • Oucht
  • Oueds
  • Ouens
  • Ought
  • Ouija
  • Oukie
  • Oulks
  • Oumas
  • Ounce
  • Oundy
  • Oupas
  • Ouped
  • Ouphe
  • Ouphs
  • Ourey
  • Ourie
  • Oused
  • Ousel
  • Ousia
  • Ousts
  • Outby
  • Outdo
  • Outed
  • Outen
  • Outer
  • Outgo
  • Outie
  • Outre
  • Outro
  • Outta
  • Ouzel
  • Ouzos

5 Letter Words Starting with Ov

  • Ovals
  • Ovary
  • Ovate
  • Ovels
  • Ovens
  • Overo
  • Overs
  • Overt
  • Ovine
  • Ovism
  • Ovist
  • Ovoid
  • Ovoli
  • Ovolo
  • Ovule

5 Letter Words Starting with Ow

  • Oware
  • Owari
  • Owche
  • Owego
  • Owens
  • Owers
  • Owest
  • Owies
  • Owing
  • Owled
  • Owler
  • Owlet
  • Owned
  • Owner
  • Ownio
  • Owres
  • Owrie
  • Owsen

5 Letter Words Starting with Ox

  • Oxbow
  • Oxeas
  • Oxers
  • Oxeye
  • Oxfam
  • Oxhey
  • Oxide
  • Oxids
  • Oxies
  • Oxime
  • Oxims
  • Oxine
  • Oxley
  • Oxlip
  • Oxman
  • Oxmen
  • Oxter

5 Letter Words Starting with Oy, Oz

  • Oyama
  • Oyens
  • Oyers
  • Ozalj
  • Ozark
  • Ozeki
  • Ozena
  • Ozian
  • Ozier
  • Ozite
  • Ozona
  • Ozone
  • Ozzie
List of 5 Letter Words Starting with O
List of 5 Letter Words Starting with O – Created by 7ESL

Plus, explore more 5 letter words that start with…
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5 Letter Words Starting with O with their Meanings

  • Oaken: made from oak wood
  • Oakum: a fiber typically used in caulking ships
  • Oasis: a supply of water in the midst of the desert
  • Oaves: plural of oaf
  • Obeah: sorcery practiced in the Caribbean
  • Obese: an overweight person
  • Occur: to happen, arise, or take place
  • Ocean: a large body of water
  • Ochre: an earthy pigment
  • Octal: a numerical system that has the number 8 as a base
  • Oddly: strange or different from what is expected
  • Odist: one who writes odes
  • Odors: a distinctive smell
  • Odyle: a fatal drug overdose
  • Offal: decomposing flesh of an animal
  • Offer: an expression of readiness to do something for someone
  • Often: frequently
  • Ogham: an ancient British and Irish alphabet
  • Ogres: man-eating giants or trolls
  • Ohana: The Hawaiian term for family
  • Okapi: a large animal of the giraffe family common in the rainforests of Congo
  • Olden: it refers to former times
  • Oleic: a fatty acid common in animal and vegetable fats or oils
  • Oleum: a dense and corrosive liquid
  • Olio: spicy meat and vegetable stew
  • Ollie: a skateboarding trick
  • Olive: a small fruit popularly used as a source of oil
  • Omega: last letter of the Greek alphabet
  • Omits: to exclude or leave out
  • Onion: a vegetable bulb used in cooking
  • Onlay: an overlay
  • Onsen: The Japanese term for hot spring resort
  • Onset: the beginning of something
  • Oohed: past tense for ooh
  • Oomph: someone exciting or energetic
  • Oozes: a slowly trickling fluid
  • Opals: plural for opal
  • Opera: a staged play set to music
  • Opium: a highly addictive substance
  • Optic: refers to the eye or vision
  • Orbit: an elliptical path of a celestial object
  • Orcas: plural for orca
  • Order: the particular arrangement of people or things
  • Organ: a collection of tissues performing a vital function
  • Orion: a prominent constellation
  • Orris: the rootstock of an iris flower
  • Oscan: an Indo-European language once used in southern Italy
  • Osier: a type of willow tree
  • Other: a distinct or different person or thing
  • Otter: a mammal of the weasel family
  • Ought: a verb used to indicate correctness or duty
  • Ouija: a spirit board
  • Ouphe: archaic term for goblin or elf
  • Ounce: unit for measuring weight
  • Ousel: a blackbird from the genus Turdidae
  • Ousts: to expel a person from a position or place
  • Outdo: to surpass
  • Outer: outside or external
  • Ovary: a female reproductive organ
  • Overt: openly shown or done
  • Ovule: a tiny ovum
  • Owing: unpaid or unsettled
  • Owner: a possessor of something
  • Oxeye: plant of the daisy family
  • Oxide: a chemical compound
  • Ozone: a highly reactive gas
  • Ozzie: an Australian
Five-Letter Words Starting with O
Five-Letter Words Starting with O – Created by 7ESL

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