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Words that Start with O for Kids - List of Essential Vocabulary Words

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Written by
Scott Sosso

A Large Collection of Words that Start with "O" to Help Kids Develop Vocabulary, Reading & Writing Skills

Whether prekindergarten or high school, parents and teachers can help explore a variety of engaging vocabulary. From entertaining and basic words such as "octopus" and "orange" to more complex terms such as "optimal" and "outstanding", this comprehensive resource covers a whole range of adjectives, nouns and many other words. LUCA's selection is thoughtfully organized to provide enough practice to learn the reading, spelling and writing with the letter "O". So, what are you waiting for? Start your adventure with LUCA's list of positive "O words" today!

Words that Start with

O

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oar
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oatmeal
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octopus
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oil
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olive
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onion
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orange
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owl

List of Words that Start with O for 3-Year-Olds

Short and Easy Words that Start with O

ouch

one

old

okay

off

out

6-letter Words that Start with O

orange

7-letter Words that Start with O

outside

List of Words that Start with O for 4-Year-Olds

Short and Easy Words that Start with O

only

once

on

or

oh

of

ox

our

ours

5-letter Words that Start with O

ocean

7-letter Words that Start with O

oatmeal

outdoor

List of Words that Start with O for 5-Year-Olds

Short and Easy Words that Start with O

own

obey

oar

open

oval

oven

over

5-letter Words that Start with O

otter

other

Long Words that Start with O

opposite

List of Words that Start with O for Kindergarten (6-Year-Olds)

Short and Easy Words that Start with O

odor

odd

owl

5-letter Words that Start with O

often

olive

onion

order

6-letter Words that Start with O

office

outlaw

orphan

7-letter Words that Start with O

officer

opening

ostrich

Long Words that Start with O

overflow

organize

ornament

List of Words that Start with O for 1st Grade (7-Year-Olds)

Short and Easy Words that Start with O

oats

oak

oily

oil

5-letter Words that Start with O

orbit

outer

owner

offer

6-letter Words that Start with O

outfit

object

7-letter Words that Start with O

orchard

operate

Long Words that Start with O

orphaned

original

overpower

outstanding

obstacle

obnoxious

operator

operation

ointment

List of Words that Start with O for 2nd Grade (8-Year-Olds)

Short and Easy Words that Start with O

owe

odds

5-letter Words that Start with O

ounce

6-letter Words that Start with O

outrun

outlet

oyster

oxygen

occupy

option

7-letter Words that Start with O

outline

outcast

offense

orderly

opinion

Long Words that Start with O

overcome

overboard

ourselves

overturn

otherwise

official

occasion

obviously

obedient

originally

oriental

ordinary

opposing

opponent

obedience

List of Words that Start with O for 3rd Grade (9-Year-Olds)

Short and Easy Words that Start with O

oft

5-letter Words that Start with O

occur

olden

oasis

ought

6-letter Words that Start with O

offend

obtain

7-letter Words that Start with O

offence

observe

obvious

outrage

outcome

overrun

Long Words that Start with O

offensive

occasional

occasionally

occupant

observation

observatory

observer

objection

observance

observant

outnumbered

outraged

outrageous

overlook

overhead

organization

organizer

originality

opportunity

orchestra

List of Words that Start with O for 4th Grade (10-Year-Olds)

Short and Easy Words that Start with O

ode

omit

5-letter Words that Start with O

outdo

6-letter Words that Start with O

ordeal

oblong

outcry

origin

7-letter Words that Start with O

outlook

Long Words that Start with O

overland

overthrow

overwork

overreach

overrated

obstruction

obstruct

obstinacy

observable

offender

occupation

omnipresent

outskirts

outstretched

obligation

oblivion

outbreak

List of Words that Start with O for 5th Grade (11-Year-Olds)

Short and Easy Words that Start with O

orb

ore

oath

5-letter Words that Start with O

optic

6-letter Words that Start with O

oracle

outset

oblige

oppose

offset

7-letter Words that Start with O

outpost

obscure

oversee

Long Words that Start with O

outburst

overbearing

overhaul

outlying

outgrowth

occurrence

oppressed

opposition

offspring

omnipotent

overture

oversight

List of Words that Start with O for 6th Grade (12-Year-Olds)

Short and Easy Words that Start with O

omen

6-letter Words that Start with O

occult

7-letter Words that Start with O

ominous

oblique

oppress

Long Words that Start with O

omission

oblivious

objective

obsolete

oppression

onslaught

obscurity

outlandish

List of Words that Start with O for 7th Grade (13-Year-Olds)

6-letter Words that Start with O

opaque

offing

7-letter Words that Start with O

onerous

oration

Long Words that Start with O

orthodox

oppressor

omniscient

occidental

List of Words that Start with O for 8th Grade (14-Year-Olds)

6-letter Words that Start with O

odious

7-letter Words that Start with O

oratory

opulent

Long Words that Start with O

obliging

orthodoxy

ordnance

List of Words that Start with O for 9th Grade (15-Year-Olds)

Long Words that Start with O

ostensible

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Scott Sosso is a serial entrepreneur recognized as one of the top in his industry from a young age. Before the age of 30, he used his entrepreneurial skills to grow a real estate startup to a billion in sales in just three years. Later, he took that entrepreneurial spirit to the healthcare industry, and through various senior leadership roles, he was a key team member who led a healthcare company to 6X gross revenues. While none of these journeys were easy, the process of scaling businesses and navigating complex market dynamics has been a testament to Scott's resilience and business acumen.

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