In English language, there are several words that start with O. We have carefully selected 200 of them based on how often they appear on Spelling bee word lists across various spelling bee competitions in Nigeria.
Here are the words below (scroll to download free PDF)
WORDS THAT START WITH O
Oarlock
Obamacrat
Obaship
Obdurate
Obeisance
Obeisant
Obelisk
Obfuscate
Oblique
Obliterate
Oblong
Obloquy
Obnebulate
Obnoxious
Obscure
Obscurity
Obsecration
Observatory
Obsess
Obsolete
Obstetrician
Obstreperous
Obtrusive
Obviate
Occipital
Occiput
Occlusion
Occultation
Occupancy
Occupational
Occupier
Occurrence
Oceanarium
Oceanian
Oceanography
Octagon
Octonocular
Octuplicate
Oddball
Odium
Odometer
Odontiasis
Odorless
Odorous
Odyssey
Oesophagus
Oestrogen
Oeuvre
Off-putting
Off-road
Offbeat
Offending
Offensively
Officinal
Officious
Offing
Offramp
Ogling
Ohio
Oilfired
Oilrig
Okapi
Olddear
Olden
Oldish
Olfactory
Olingo
Olingo
Olympiad
Olympian
Ombudsman
Omega
Omen
Omicron
Ominous
Ominously
Omission
Omnidirectional
Omnilegent
Omniscient
Omnium
Omnivore
Oncology
Onion
Onslaught
Ontology
Onus
Oompah
Oozing
Opacity
Opaque
Operand
Operationally
Operose
Opprobrious
Opprobrium
Oppugn
Optician
Optimum
Opulent
Oracle
Oracular
Oracy
Orangery
Oratorical
Orb
Orbiter
Orchard
Orchestra
Ordered
Ordinal
Ordinance
Ordinarily
Ore
Organdie
Organelle
Organist
Organophosphate
Organza
Oriel
Origami
Originate
Oriole
Orion
Ornamented
Ornery
Ornithology
Orographic
Orthodontics
Orthogonal
Orthography
Orthopaedics
Orthopedics
Oscar
Oscillate
Oscitation
Osculatory
Oslo
Osloite
Osmium
Osmosis
Osmotic
Osprey
Ossicle
Ossify
Ostensible
Ostensibly
Ostentatious
Osteopath
Ostracism
Otherwise
Ottawa
Otter
Ottoman
Ouch
Ounce
Ours
Oust
Ouster
Outbid
Outcast
Outcrop
Outdistance
Outlandish
Outmaneuver
Outrageous
Outrank
Outrigger
Outwardly
Outwit
Ovation
Overate
Overawe
Overbearing
Overcautious
Overclass
Overconfidence
Overgraze
Overhang
Overrated
Overripe
Overtures
Overweening
Overwhelm
Overwhelming
Overwrought
Ovine
Oviparous
Ovulation
Owlet
Owlishly
Ownership
Oxalis
Oxbow
Oxidation
Oxonian
Oxtail
Oxygenate
Oxymoron
Oystercatcher
Ozone
