Words starting with O
Every word in the dictionary whose first letter is O — 5,843 of 172,823.
- Words
- 5,843
- Everyday
- 919in the size-ranked core
- Longest
- 24overintellectualizations
- Shortest
- 212 words tie
- oaf
- oafs
- oak
- oaks
- oar
- oared
- oaring
- oars
- oases
- oasis
- oath
- oaths
- oatmeal
- obedience
- obedient
- obediently
- obelisk
- obelisks
- obese
- obesity
- obey
- obeyed
- obeying
- obeys
- obfuscation
- obituaries
- obituary
- object
- objected
- objecting
- objection
- objectionable
- objections
- objective
- objectively
- objectives
- objectivity
- objectors
- objects
- obligate
- obligated
- obligates
- obligating
- obligation
- obligations
- obligatory
- oblige
- obliged
- obliges
- obliging
- oblique
- obliques
- obliterate
- obliterated
- obliterates
- obliterating
- obliteration
- oblivion
- oblivious
- oblong
- oblongs
- obnoxious
- oboe
- oboes
- obscene
- obscener
- obscenest
- obscenities
- obscenity
- obscure
- obscured
- obscurer
- obscures
- obscurest
- obscuring
- obscurities
- obscurity
- observable
- observance
- observances
- observant
- observation
- observations
- observatories
- observatory
- observe
- observed
- observer
- observers
- observes
- observing
- obsess
- obsessed
- obsesses
- obsessing
- obsession
- obsessions
- obsessive
- obsolescence
- obsolescent
- obsolete
- obsoleted
- obsoletes
- obsoleting
- obstacle
- obstacles
- obstetrician
- obstetricians
- obstetrics
- obstinacy
- obstinate
- obstruct
- obstructed
- obstructing
- obstruction
- obstructions
- obstructive
- obstructs
- obtain
- obtainable
- obtained
- obtaining
- obtains
- obtrusive
- obtuse
- obtuser
- obtusest
- obvious
- obviously
- occasion
- occasional
- occasionally
- occasioned
- occasioning
- occasions
- occupancies
- occupancy
- occupant
- occupants
- occupation
- occupational
- occupations
- occupied
- occupies
- occupy
- occupying
- occur
- occurred
- occurrence
- occurrences
- occurring
- occurs
- ocean
- oceanic
- oceanography
- oceans
- octagon
- octagonal
- octagons
- octal
- octave
- octaves
- octopus
- octopuses
- ocular
- oculars
- odd
- odder
- oddest
- oddities
- oddity
- oddly
- odds
- ode
- odes
- odious
- odometer
- odometers
- odor
- odors
- of
- off
- offbeat
- offbeats
- offed
- offend
- offended
- offender
- offenders
- offending
- offends
- offense
- offenses
- offensive
- offensiveness
- offensives
- offer
- offered
- offering
- offerings
- offers
- offhand
- office
- officer
- officers
- offices
- official
- officially
- officials
- officiate
- officiated
- officiates
- officiating
- officious
- offing
- offings
- offload
- offs
- offset
- offsets
- offsetting
- offshoot
- offshoots
- offshore
- offspring
- offstage
- often
- oftener
- oftenest
- ogle
- ogled
- ogles
- ogling
- ogre
- ogres
- oh
- ohm
- ohms
- ohs
- oil
- oiled
- oilier
- oiliest
- oiling
- oils
- oily
- ointment
- ointments
- okay
- okayed
- okaying
- okays
- okra
- okras
- old
- olden
- older
- oldest
- olfactory
- olive
- olives
- omega
- omelet
- omelets
- omen
- omens
- ominous
- ominously
- omission
- omissions
- omit
- omits
- omitted
- omitting
- omnibus
- omnipotence
- omnipotent
- omnipresent
- omniscient
- on
- once
- oncoming
- one
- onerous
- ones
- oneself
- ongoing
- onion
- onions
- onlooker
- onlookers
- only
- onomatopoeia
- onrush
- onrushes
- onset
- onsets
- onslaught
- onslaughts
- onto
Showing the first 300 of 5,843, everyday words first and alphabetical inside each group. The longer openings below cut this list into readable pieces.
What is in this list
The longest is overintellectualizations at 24 letters.
They run from 2 to 24 letters; 972 of them have 8 letters, more than any other length.
919 of them — 16% — are in the everyday tier; the rest are filed as rarer.
Every one of them contains an O.
The one furthest down the tiers is optimisations, filed in the unranked list.
2
123
454
1075
1816
3257
6188
9729
92210
79111
59112
41913
30514
21515
15916
7617
4018
3119
2020
521
422
323
124
1
Longer openings that begin with O
Elsewhere
Ordered everyday words first, then alphabetical inside each group — the same rule on every list here. At most 300 are printed on one page.