Words that start with O

Words That Start With O

Do you want to use words that start with O

Well, you have come to the right place. 

I have put together a list of words that start with O to help expand your vocabulary.

Find English Words That Start With Specific Letters (A to Z) – Updated

Vocabulary is an essential part of learning English. It helps you express yourself more clearly and concisely and also enables you to understand what other people are saying to you.

Learn English anytime, anywhere at HiEnglishHub.com.

50 Words That Start With O

WordTypeMeaning
outenverbto put out
orderlyadjectiveneatly arranged
openheartedadjectivegenerous and kind
obtainableadjectiveable to be obtained
objectiveadjectivebased on observed facts
omnipresentadjectivewidespread
overtadjectivedone openly
optionaladjectiveelective
originaladjectiveearliest
opportunisticadjectivetaking advantage of chances that arise
obedientadjectivewilling to comply with the orders
oracularadjectiverelating to an oracle
observationaladjectiverelating to observation
outchideverbto exceed in chiding
ornamentaladjectivedecorative
operableadjectiveable to be used
open-endedadjectivehaving no limit
octetnouna group of eight people
omnipotentadjectiveable to do anything
occurverbto happen
obtainableadjectiveable to be obtained
organicadjectiverelating to living matter
overfeedverbto give too much food to
occlusaladjectiverelating to the occlusion of teeth
open-mindedadjectivewilling to consider new ideas
omniscientadjectiveknowing everything
orientedadjectivehaving a specific orientation
optimaladjectivebest
obligingadjectivewilling to do favors for others
overdoseverbto take an overdose
overboldadjectiveexcessively bold
optimisticadjectiveconfident about the future
overachievernounsomeone who overachieves
oddadjectivestrange
outlandishadjectivebizarre
overemotionaladjectivehaving too much emotion
opinionativeadjectiverelating to opinion
overstrungadjectiveexcessively tense 
ordinaryadjectivenormal, common
outdoorsyadjectiveenjoy the outdoors
outspokenadjectiveopen in speech
overfatiguedadjectiveexcessive fatigue
overmodestadjectiveexcessively modest
obnoxiousadjectiveextremely unpleasant
outgoingadjectivesocially confident
outstandingadjectiveexceptionally good
oblivionnounthe state of being unaware of what is happening
oatcakenouna think cake, made from oatmeal
oblatoryadjectiverelating to oblation
obvoluteadjectiveoverlapping

 

5 Letter Words That Start With O

 

oldie

oaten

ocher

owing

ortho

otter

ousts

odeum

oleos

octal

ology

osmic

ovine

obeys

oaken

owlet

owned

other

ocean

overt

outer

ornis

okays

oaths

ounce

oddly

oiled

overs

ought

odder

owner

ovens

offed

octan

obese

omens

occur

octad

oiler

obeli

outen

osier

outgo

outre

obols

ovals

older

outed

oared

ovoid

odors

ombre

offal

olein

outta

outie

oboes

oleic

ovule

olive

outdo

oculi

octet

Positive Words That Start With O

Here are some nice words that start with O.

oracular

observational

originative

ornamental

operable

open-ended

opened

omnipotent

obligated

organized

organic

optimistic

ok

open-minded

omniscient

oriented

optimal

obliging

omnidirectional

occurrent

overjoyed

optimum

official

orderly

openhearted

obtainable

objective

omnipresent

okay

optional

original

opportunistic

obedient

Words That Start With O And End With De  

overwide

onside

overtrade

obtrude

outchide

outride

offside

outmode

overrode

override

oxide

ovicide

omnimode

outguide

ozonide

outrode

occlude

overstride

octapeptide

outstrode

overrude

overpersuade

outtrade

outside

ode

overside

overstrode

orthograde

outstride

overlade

ostracode

oligosaccharide

orangeade

Words That Start With O And End With O

orzo

outdo

overdo

obbligato

obento

oleo

ortho

outgo

oratorio

olio

oloroso

ordo

ono

oxo

onto

oho

octavo

ostinato

Words That Start With O And End With Ide

offside

octapeptide

oxide

ozonide

overwide

outside

overstride

ovicide

outstride

outride

oligosaccharide

onside

overside

outguide

override

Words That Start With O To Describe Someone

Use some of the descriptive words that start with O to describe someone you know.

oldish

obsessional

overeducated

old

open

overcritical

overweight

overdressed

overfed

overwrought

outright

overdosed

overbold

optimistic

overachiever

odd

outlandish

overemotional

opinionative

overstrung

ordinary

overcommitted

organized

obedient

overjoyed

outdoorsy

outspoken

overfatigued

overmodest

obnoxious

outgoing

outstanding

outraged

Words That Start With O For Kindergarten

okay

October

one

oh

o’clock

on

ocean

organic

ox

oats

off

obey

open

oak

orbit

office

odd

often

officer

octagon

over

oil

only

onto

Christmas Words That Start With O

outstandingly

ornamenting

olive

origin

optimistic

offer

outstanding

offspring

offering

omnism

observance

opulently

obligingly

overjoying

oven

occasion

observe

optimally

ornamentation

openhandedly

overflow

omniety

opulence

ornamental

8 Letter Words That Start With O

oblation

occulted

obelised

obsolete

ocarinas

obviable

observed

occiputs

obsessor

obtunded

oblately

occlusal

obsidian

obedient

oatmeals

occludes

obtruded

obnounce

oblivion

oatcakes

oblatory

obvolute

obliging

obligors

oblongly

obscured

obviator

objected

obliqued

obliques

obverses

obtusely

occultly

obverted

obturate

oarlocks

obeyable

obesogen

obduracy

obeisant

obligate

occasion

obituary

occident

oriented

6 Letter Words That Start With O

owlets

octopi

outfly

octans

oxeyes

oxters

octane

office

outfed

outlaw

octets

outcry

offlap

outfit

oflags

oyelet

owning

ogress

offals

oxlike

ocular

octant

outdid

oxygen

offish

outens

Oxford

offers

oxidic

ohmage

offing

oxalic

oglers

oxbows

outlay

ogling

outcut

oedema

oxtail

oilcan

oxisol

octavo

oxalis

oylets

oyster

oddest

octave

oximes

ozones

oculus

oxlips

owners

oxcart

outies

outlet

ogrish

outgun

oddish

outbox

oilcup

odiums

output

octals

outbid

outing

outlip

oxides

offset

oeuvre

offend

outgas

outjut

4 Letter Words That Start With O

ocas

oxes

ogre

owes

obey

oink

odor

ohed

orts

oxen

oyez

otoh

offs

oaks

oval

oleo

obit

ouzo

obis

olds

owls

oast

okay

owse

oath

ouis

oats

ogle

oars

oily

ours

oust

oven

okra

ossa

outs

oyes

oldy

owns

osar

oked

oxid

odds

odea

over

odic

ouch

oryx

oafs

ovum

oils

oboe

odes

owed

3 Letter Words That Start With O

oik

odd

oar

oda

our

ole

ons

ops

oud

ous

oke

owl

ova

obs

ode

owe

oat

orc

obi

oil

oaf

oak

off

orb

oka

oui

oho

out

oes

opt

oft

one

ope

own

ooh

old

ods

och

ore

Final Thoughts On Words That Start With O

I hope this list has been fun and helpful to you.

Don’t forget to share this post with your friends so that you can help them too.

Also read:

Leave a Comment

Scroll to Top