Words that Start With O

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.

Table of Contents

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Outdated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 | Infographic 2