Words that Start With O | List of 130+ 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

  • Obedient
  • Object
  • Objective
  • Objectively
  • Obligated
  • Obligation
  • Obscure
  • Observation
  • Observatory
  • Observe
  • Obsolete
  • Obstacle
  • Obtain
  • Obvious
  • Obviously
  • Occasion
  • Occasional
  • Occasionally
  • Occupation
  • Occupy
  • Occur
  • Occurred
  • Occurrence
  • Ocean
  • October
  • Oddly
  • Offense
  • Offensive
  • Offer
  • Office
  • Officer
  • Official
  • Officially
  • Offline
  • Offset
  • Offshoot
  • Offshore
  • Okay
  • Older
  • Oldest

 O WORDS | LIST 2

  • Olive
  • Olympiad
  • Olympic
  • Ongoing
  • Online
  • Onscreen
  • Onslaught
  • Onstage
  • Open
  • Openly
  • Openness
  • Operate
  • Operation
  • Operational
  • Operator
  • Opinion
  • Opponent
  • Opportunity
  • Oppose
  • Opposite
  • Opposition
  • Optic
  • Optical
  • Optimal
  • Optimism
  • Optimistic
  • Optimization
  • Optimize
  • Option
  • Optional
  • Or
  • Oral
  • Orange
  • Orbit
  • Orbital
  • Order
  • Orderly
  • Ordinary
  • Organ

 O WORDS | LIST 3

  • Organic
  • Organisation
  • Organization
  • Organize
  • Orientation
  • Origin
  • Original
  • Originally
  • Ostensibly
  • Otherwise
  • Ought
  • Outage
  • Outbreak
  • Outcome
  • Outdated
  • Outdoor
  • Outfit
  • Outfitted
  • Outgoing
  • Outline
  • Outlook
  • Output
  • Outsource
  • Outspoken
  • Outstanding
  • Outweigh
  • Oven
  • Overall
  • Overcome
  • Overhaul
  • Overhead
  • Overlap
  • Overlay
  • Overly
  • Overnight
  • Override
  • Overrun
  • Oversaw
  • Oversee
  • Overseen
  • Oversight
  • Overtake
  • Overthrow
  • Overtime
  • Overturn
  • Overview
  • Overweight
  • Owed
  • Owned
  • Owner
  • Ownership
  • Owning
  • Oxygen

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 130+ Popular O Words in English

Words that Start with O | Infographic 2

Words that Start With O | List of 130+ Popular O Words in English

Words that Start With O | List of 130+ Popular O Words in English 1

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