Nouns that start with O

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In today’s session, we’ll learn everything about nouns and go through a list of Nouns that start with O. A noun is a name given to a person, place, thing, or idea, as we all know.

Noun:

Nouns are some of the most important parts of speech because they identify the people, places, things, and ideas that make up your language. Nouns can be concrete or abstract.

Nouns that start with O infographic

Nouns that start with O
Nouns that start with O

Nouns that start with O:

  • Oversimplification
  • Outset
  • Oyster
  • Overtime
  • Oblige
  • Overhang
  • Obstacle
  • Oomph
  • Occupancy
  • Overhead
  • Outlaw
  • Ode
  • Oblong
  • Oxalate
  • Outlay
  • Oxidation
  • Overpressure
  • Objectification
  • Oratory
  • Organdy
  • Oathe
  • Oxide
  • Ossification
  • Orchestrator
  • Obsession
  • Opportunity
  • Oceanography
  • Objector
  • Obsidian
  • Origin
  • Optimization
  • Overpayment
  • Omen
  • Objectivity
  • Omelet
  • Overlay
  • Offer
  • Organification
  • Occurrence
  • Opposition
  • Optimist
  • Obscenity
  • Ordeal
  • Outcome
  • Optimism
  • Ocean
  • Organizer
  • Offing
  • Occasion
  • Oxcart
  • Open
  • Oneupmanship
  • Obverse
  • Orthophosphate
  • Oilcloth
  • Objective
  • Outlook
  • Offspring
  • Omnipotence
  • Orphanage
  • Opposite
  • Owner
  • Organ
  • Onset
  • Outreach
  • Orgy
  • Operand
  • Obedience
  • Onlooker
  • Oversight
  • Oiticica
  • Ocher
  • Obligation
  • Outfielder
  • Objection
  • Oblivion
  • Ostracism
  • Opponent
  • Orthodontist
  • Ounce
  • Octagon
  • Obelisk
  • Overture
  • Omission
  • Oiliness
  • Oaf
  • Ownership
  • Ooh
  • Opal
  • Orthography
  • Onrush
  • Odyssey
  • Ommission
  • Outrage
  • Orgasm
  • Orbit
  • Olympian
  • Office
  • Original
  • Outback
  • Overweight
  • Orchestra
  • Orgone
  • Ooze
  • Operetta
  • Official
  • Omnivore
  • Oasis
  • Oratorio
  • Odor
  • Overhaul
  • Organist
  • Ostrich
  • Outfield
  • Olive
  • Outcast
  • Observation
  • Ornamental
  • Opening
  • Orange
  • Outflow
  • Operator
  • Oep
  • Originality
  • Omnipotent
  • Overcoat
  • Obstructionist
  • Ornamentation
  • Oxen
  • Overload
  • Oilseed
  • Overflow
  • Oak
  • Optimality
  • Offering
  • Owl
  • Oscillator
  • Overseer
  • Offal
  • Object
  • Orchard
  • Oppression
  • Overrun
  • Onion
  • Ogre
  • Obliteration
  • Osmium
  • Orthicon
  • Ovation
  • Outside
  • Overcast
  • Orb
  • Octoroon
  • Ome
  • Oodles
  • Organism
  • Oral
  • Ointment
  • Octopus
  • Order
  • Oboist
  • Ordinance
  • Outfit
  • Outhouse
  • Oval
  • Output
  • Occlusion
  • Outpatient
  • Ocarina
  • Organization
  • Ordnance
  • Oil
  • Overthrow
  • Offersey
  • Orator
  • Oath
  • Ocelot
  • Ordinary
  • Outburst
  • Oscillation
  • Officer
  • Officialdom
  • Overprotection
  • Opener
  • Origination
  • Outgrowth
  • Occupation
  • Outbreak
  • Operation
  • Offshoot
  • Opportunism
  • Oven
  • Oxygen
  • Overpopulation
  • Opinion
  • Overexploitation
  • Overall
  • Outlawry
  • Observer
  • Octahedron
  • Option
  • Originator
  • Orphan
  • Occupant
  • Ozone
  • Outsider
  • Obesity
  • Offender
  • Observance
  • Owi
  • Oracle
  • Outline
  • Orderly
  • Outlet
  • Openness
  • Otter
  • Obscurity
  • Overnight
  • Opprobrium
  • Offense
  • Orchestration
  • Orientation
  • Overestimation
  • Ouster
  • October
  • Outcry
  • Oration
  • Optimum
  • Ochre
  • Opera
  • Outpost
  • Ornament
  • Oatmeal
  • Oxytetracycline
  • Onslaught
  • Opium
  • Oleomargarine
  • Outing

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