Words that Start With O | List of 330+ Popular O Words in English

Words that Start With O! In this lesson, you will learn a list of commonly used words starting with O in English with ESL pictures to help you enhance your English vocabulary.

Words that Start With O

O Words | List 1

  • Optimism
  • Oasis
  • Oath
  • Obcordate
  • Obedience
  • Obedient
  • Obediently
  • Obeisance
  • Obey
  • Objective
  • Objectively
  • Obligation
  • Oblige
  • Obliged
  • Obliging
  • Obligingly
  • Observance
  • Observant
  • Observe
  • Obtain
  • Obtainable
  • Obviousness
  • Occasion
  • Occur
  • Odds-on
  • Offer
  • Offering
  • Official
  • Ok
  • Okay
  • Okayed
  • Okey-dokey
  • Olympiad
  • Olympian
  • Omnipotent
  • Omnipresent
  • Omniscience
  • Omniscient
  • On
  • On-time
  • On-board
  • Oncoming
  • One
  • One-liner
  • Oneness
  • Ongoing
  • On-hand
  • On-target
  • On-the-ball
  • On-the-beam
  • On-the-button
  • On-the-money
  • Onward
  • Onwards
  • Oodles
  • Oohlala
  • Oomph
  • Ooze
  • Oozing
  • Opalescent
  • Open
  • Open up
  • Open-handed
  • Open-hearted
  • Open-heartedly
  • Opening
  • Openly
  • Open-mind
  • Open-minded
  • Openness
  • Operable
  • Operatic
  • Operational
  • Operative
  • Opportune
  • Opportunities
  • Opportunity
  • Optimal
  • Optimist
  • Optimistic
  • Optimum
  • Option
  • Opulence
  • Opulent
  • Oracy
  • Orator
  • Orchestrated
  • Order
  • Orderly
  • Organic
  • Organization
  • Organizational
  • Organized
  • Orgasmic
  • Orientation
  • Oriented
  • Original
  • Originality
  • Originate
  • Origination
  • Originative
  • Ornament
  • Ornamental
  • Ornate
  • Orotund
  • Oscar
  • Oscular
  • Osculate
  • Outback
  • Outbalance
  • Outbrave
  • Outclass
  • Outdance
  • Outdistance
  • Outdo
  • Outdone
  • Outdrive
  • Outface
  • Outfly
  • Outgoing
  • Outlast
  • Out-of-this-world
  • Outperform
  • Outperformed
  • Outperforming
  • Outplay
  • Outpoint
  • Outrace
  • Outrageous
  • Outrank
  • Outright
  • Outsail
  • Outscore
  • Outshine
  • Outshone
  • Outsize
  • Outsmart
  • Outspoken

O Words | List 2

  • Outsprint
  • Outstanding
  • Outstandingly
  • Outstretch
  • Outstrip
  • Outthink
  • Outwit
  • Ovation
  • Over
  • Overachieve
  • Overachiever
  • Overactive
  • Overage
  • Overbold
  • Overbrimming
  • Overcome
  • Overexcited
  • Overflow
  • Overflowing
  • Overfond
  • Overjoy
  • Overjoyed
  • Over-joyful
  • Overjoying
  • Overmodest
  • Overpower
  • Overriding
  • Oversize
  • Overt
  • Overtake
  • Overtaken
  • Overtaking
  • Overture
  • Overwhelming
  • Owner
  • Object
  • Obligated
  • Obscure
  • Observation
  • Observatory
  • Obsolete
  • Obstacle
  • Obvious
  • Obviously
  • Occasional
  • Occasionally
  • Occupation
  • Occupy
  • Occurred
  • Occurrence
  • Ocean
  • October
  • Oddly
  • Offense
  • Offensive
  • Office
  • Officer
  • Officially
  • Offline
  • Offset
  • Offshoot
  • Offshore
  • Older
  • Oldest
  • Olive
  • Olympic
  • Online
  • Onscreen
  • Onslaught
  • Onstage
  • Operate
  • Operation
  • Operator
  • Opinion
  • Opponent
  • Oppose
  • Opposite
  • Opposition
  • Optic
  • Optical
  • Optimization
  • Optimize
  • Optional
  • Or
  • Oral
  • Orange
  • Orbit
  • Orbital
  • Ordinary
  • Organ
  • Organisation
  • Organize
  • Origin
  • Originally
  • Ostensibly
  • Otherwise
  • Ought
  • Outage
  • Outbreak
  • Outcome
  • Outdated
  • Outdoor
  • Outfit
  • Outfitted
  • Outline
  • Outlook
  • Output
  • Outsource
  • Outweigh
  • Oven
  • Overall
  • Overhaul
  • Overhead
  • Overlap
  • Overlay
  • Overly
  • Overnight
  • Override
  • Overrun
  • Oversaw
  • Oversee
  • Overseen
  • Oversight
  • Overthrow
  • Overtime
  • Overturn
  • Overview
  • Overweight
  • Owed
  • Owned
  • Ownership
  • Owning
  • Oxygen
  • Owlish
  • Oviparous
  • Overwrought
  • Overwhelmed
  • Oversensitive
  • Overrated
  • Overconfident
  • Overblown
  • Ovate
  • Ovarian

O Words | List 3

  • Oval
  • Outside
  • Outlandish
  • Outermost
  • Outer
  • Outbound
  • Otiose
  • Ostentatious
  • Ostensible
  • Ossified
  • Ornery
  • Orgiastic
  • Organdy
  • Oppressive
  • Opinionated
  • Operating
  • Open-ended
  • Opaque
  • Onerous
  • Omnivorous
  • Ominous
  • Olfactory
  • Old-fashioned
  • Olden
  • Old
  • Oily
  • Offhand
  • Offbeat
  • Odoriferous
  • Odious
  • Odd
  • Ocular
  • Octogenarian
  • Octagonal
  • Oceanic
  • Occupied
  • Occlusive
  • Occipital
  • Occidental
  • Obtuse
  • Obstinate
  • Obsessive
  • Obsessed
  • Obsequious
  • Obscene
  • Obnoxious
  • Oblong
  • Oblique
  • Oblate
  • Objectionable
  • Obese
  • Obeisant
  • Obdurate
  • Oaten
  • Oafish

Learn more about list of words that start with n in English.

Words that Start with O | Examples

  • He was very respectful at home and obedient to his parents.
  • Try to be objective if you want to spend your money wisely.
  • Facts can be established by observation and experiment.
  • The role of scientists is to observe and describe the world, not to try to control it.
  • The police are trying to obtain a more accurate picture of crime levels.
  • Men were standing around, swilling beer and occasionally leering at passing females.
  • The highest spring tides of the year occur after the equinoxes in March and September.
  • The students return in October for the start of the new academic year.
  • There have been several retirements in my office recently.
  • Most software programs allow you to compose emails offline.
  • The older generation prefer a darker and more traditional kind of clothing.
  • In desperation, Mrs. Jones submitted to an operation on her right knee to relieve the pain.
  • You must avail yourself of every opportunity to speak English.
  • We will lay stress on industrial structure optimization while using FDI.
  • The well-known singer was accompanied at the electronic organ by his school teacher.
  • The organization is ever vigilant for threats to the habitats of birds.
  • Tableware for outdoor use should ideally be unbreakable.
  • The overall cost of the exhibition was £400,000.
  • To make a lasting marriage we have to overcome self-centeredness.
  • That city has decided to do away with overhead wires.
  • The welfare of a child should always override the wishes of its parents.
  • We’ve just appointed a coordinator who will oversee the whole project.
  • Pulling out to overtake, the car collided head-on with a van.
  • The document provides a general overview of the bank’s policies.
  • She said insensitive things to the overweight woman.
  • The owner has offered a reward for the recovery of the stolen goods.

Words that Start with O | Infographic

Words that Start with O | Infographic 1

Words that Start With O | List of 330+ Popular O Words in EnglishPin

Words that Start with O | Infographic 2

Words that Start With O | List of 330+ Popular O Words in EnglishPin

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noah
noah
2 months ago

hi

nico
nico
2 months ago

jjm

2
0
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