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Here we have a List of Nouns that Start with O. To improve your English, you can get familiar with the most normally involved nouns in English. It has a place with the principal grammatical forms in the English language.
will assist you with extending your jargon recorded as a hard copy or playing word games like Scrabble. In the standard daily schedule of life, numerous things that begin with An are utilized in ordinary discussions.
What Are Nouns Starting With O?
A noun is a word that generally works as the name of a particular item or gathering of nouns, like an individual, place, residing animals, places, activities, characteristics, realities, or thoughts.
List of Nouns that Start With O
Ocelot | Ower | Overexposure |
---|---|---|
Occidental | Oncologist | Orangutang |
Ordinand | Overarm | Outgroup |
Overdevelopment | One-sidedness | Onanism |
Outrigger | Obstructionist | Overfishing |
Orthogenesis | O Noun | Overflight |
Octogenarian | Orchestre | Outro |
Outwork | Osmometry | Overprotection |
Overdosage | Officiant | Overactivity |
Openwork | Orbitosphenoid | Obligato |
Oka | Oleoyl | Omnivore |
Optronics | Omphalos | Origanum |
Overreach | Octopussy | Obdurateness |
Ophthalmoscope | Opalescence | Openmindedness |
Ouzel | Outliner | Outlands |
Overspecialization | Opaline | Outdatedness |
Oppressiveness | Owings | Ouvrier |
Occupance | Obstructiveness | Orzo |
Oriole | Omentum | Obeche |
Overvaluation | Overlayer | Officiousness |
Oprichnina | Oxygenase | Office |
Overcommitment | Otherworldliness | Oper |
Opaqueness | Operationalization | Oth |
Oesophagogastroduodenoscopy | Orchis | One-nighter |
On | Operatorship | Oncogenesis |
Oxidant | Oximeter | Obliqueness |
Oligarch | Overplus | Obliquus |
Overconfidence | Ornamenter | Ovalbumin |
Outerwear | Outport | Oxfendazole |
Osteosarcoma | Overexpansion | Osteomalacia |
Outfielder | Oculus | Olfaction |
Organum | Orthopyroxene | Overrepresentation |
Oompah | Obscuration | Osteomyelitis |
Octapeptide | Oversupply | Overstability |
O Noun | Ogam | Owlet |
Oversubscription | Otolaryngology | Ozokerite |
Oxymoron | Ocarina | Oncovin |
Opticals | Obsequiousness | O Noun |
Ortho | Oxocarbon | Ondansetron |
Outstation | Oloroso | Obnoxiousness |
Orangeade | Oilbird | Operationalism |
Osha | Oldness | Orthophosphate |
Over-excitement | O Noun | Oscillograph |
Overfamiliarity | Outswinger | Olivet |
Outrageousness | Oviposition | Obol |
Outer | Oxyrhynchus | Overconsumption |
Offerer | Occident | Okrug |
Oppidum | Overdependence | Ossia |
Oblate | Outcaste | Overstrike |
O Noun | Open-handedness | O Noun |
Obsessiveness | Oblation | Osculation |
Obligatoriness | Otoscopy | Ornamentalism |
Optometry | Open-side | Olla |
Otalgia | Overprotection | Overwrap |
Officialese | Overactivity | Ommatidium |
O Noun | Oversensitivity | Osier |
Ostmark | Oxalis | Over taxation |
Opticks | Ostracization | Overman |
Oner | Oribi | Oiler |
Omnicompetence | Outbreeding | Oldster |
Nouns that Start With O
Orthopaedics | One-upmanship | Oracy |
---|---|---|
Overrun | Oxygenation | Outer |
Omicron | Operculum | Outmigration |
Oldie | Overexpression | Onomatopoeia |
Ordo | Octavo | Oxyhaemoglobin |
Orogen | Orangutan | Outplacement |
Off-season | Ogle | Oligomer |
Olivine | Openside | Offertory |
Overcast | Occultation | Omnipotent |
Ottoman | Orca | Oxytocin |
Okay | Osteopathy | Ordinate |
Ormolu | Onrush | Outrider |
Oligodendrocyte | Ort | Overstimulation |
Orvieto | Outlawry | Out-tray |
Overbalance | Oliguria | Osteospermum |
Obloquy | Oversteer | Organdie |
Opioid | Oolite | Operon |
Oculist | Outfitter | Ossuary |
Obtuseness | Oche | Odalisque |
Oggy | Offense | Ontogenesis |
Osmium | Ology | Ovine |
Ottar | Offensiveness | Out |
Osmolarity | Oppo | Ogi |
Oblique | Open-mindedness | Oba |
Occultism | Optoelectronics | Orientalist |
Oocyte | Oppositeness | Ocker |
Orchestrator | Osmometer | Overcharge |
Octahedron | Odometer | Okada |
Obit | Obliquity | Orogenesis |
Oranda | Operability | Oxbow |
Overestimation | Okay | Overinvolvement |
Orgone | Oestradiol | Onchocerciasis |
Overlooker | Org | Oppositionist |
Overmantel | Out-relief | Occultist |
Oiliness | Out-turn | Orosomucoid |
Oilman | Orris | Organophosphate |
Overindebtedness | Oceanographer | Operant |
Overdetermination | Oik | Oesophagectomy |
Ovoid | Offchance | Oncoprotein |
Occiput | Overexploitation | Oubliette |
Overtrousers | Octavius | Odontoid |
One-piece | Optimiser | Omerta |
Overemphasis | Oleander | Ouguiya |
Oralist | Overindulgence | Oceanarium |
Orality | Organogenesis | Oul |
Oboist | Oxy | Offtake |
Orrery | Optometrist | Oidium |
Owre | Oiticica | Orang-outang |
Organicist | Oxyacetylene | Organelle |
Old-timer | Overtreatment | Outperformance |
Overexertion | Overdraught | Off-worlder |
Nouns List that Starts With O
Off-license | Offal | Orthography |
---|---|---|
Ode | Oneness | Opiate |
Ordinary | Ob | Ostentation |
Offset | Orang-utan | Oddball |
Outbound | Ochre | Oregano |
Outreach | Oversimplification | Oncology |
Osteoporosis | Osmosis | Oligo |
Overlord | Outfall | Overwork |
Opportunism | Outback | Orogeny |
Operand | Obs | Override |
Overgrowth | Om | Orderliness |
Oligarchy | Opacity | Overcapacity |
Ovulation | Orf | Overlordship |
One-off | Orderly | Oratorio |
Outpost | Obverse | Omer |
Orator | Outhouse | Outfield |
Objector | Ovary | Overpopulation |
Oda | Oxidase | Oe |
Optimist | Otaku | Oldman |
Obsolescence | Ooze | Oblast |
Objectification | Obelisk | Oppressor |
Obfuscation | Osh | Orthoptera |
Octane | Objectivist | Ogee |
Orang | Olympiad | Oilcloth |
Oleate | Outturn | Ordure |
Orienteering | Obduracy | Ouzo |
Ostracism | Once-over | Oodles |
Optimum | Origination | Oxidization |
Obex | Overuse | Outspokenness |
Outsole | Outa | Obscurantist |
Oestrus | Overestimate | Octet |
Oligopoly | Oca | Orefield |
Overgrazing | Outbuilding | Occurrence |
Obeisance | Origami | Offspinner |
Olf | Osmolality | Outage |
Odium | Overtype | Ossification |
Overpayment | Ostinato | Oomph |
Oscilloscope | Ostler | Obscurantism |
Okra | Outboard | Overbridge |
Oration | Obviousness | Over-consumption |
Ophthalmology | Oviduct | Obsequies |
Otitis | Ouster | Objectivism |
Overtone | Ovipositor | Ontogeny |
Orbital | Ophiolite | One-liner |
Overstatement | Oncogene | Origo |
Orangery | Out-of-doors | Obstructionism |
Offeree | Oralism | Osteonecrosis |
Orientalism | Osteoarthritis | Odorant |
Omniscience | Ophthalmologist | Otherworld |
Oilskin | Oryx | Order |
Oceanography | Orbiter | Ost |
Off-chance | Osteopath | Orangerie |
Oliva | Organza | Opossum |
Overshoot | Oximetry | Omnipresence |
Outremer | Olsalazine | Overthrust |
Oystercatcher | Overaccumulation | Omnium |
Opprobrium | Oxtail | Obbligato |
The List of Nouns that Start With O
Oddity | Overseer | Ohm |
---|---|---|
Orgy | Occlusion | Operetta |
Obe | Onlooker | Ontology |
Outcrop | Obiter | Ola |
Overload | Optician | Omnipotence |
Ordinance | Obstinacy | Outgrowth |
Omnibus | Octreotide | Orifice |
Odyssey | Ornithology | Obstetrician |
Opt-out | Ordinariness | Obliteration |
Oratory | Outlaw | Osprey |
Oboe | Okapi | Overproduction |
Omega | Orchestration | Optimization |
Orb | Ornamentation | Oilseed |
Opus | Oeuvre | Ouija |
Outcast | Ornithologist | One-year-old |
Odeon | Offing | Outpouring |
Octamer | Octagon | Od |
Oedema | Oriel | Og |
Ostrich | Overspill | Ogre |
Omelette | Out-patient | Offworlder |
Oxon | Oilfield | Oddness |
Offshoot | Opulence | Onyx |
Officialdom | Overkill | Oblong |
Oestrogen | Optimization | Oxo |
Nouns that Start With O in English
Operation | Odor | Olive |
---|---|---|
Opposition | Organiser | Oval |
Officer | Orbit | Overdose |
Oxford | Oscar | Ornament |
Organization | Obsession | Occupancy |
Opinion | Outrage | Orient |
Organization | Obedience | Overhaul |
Offer | Obstacle | Op |
Output | Omission | Overdrive |
Option | Ordeal | Oblivion |
Object | Outsider | Onus |
Occasion | Offender | Outlay |
Owner | Outlet | Occupant |
Outcome | Original | Obscurity |
Offense | Oct | Octave |
Ownership | Outside | Observance |
Objective | Offensive | Observatory |
Origin | Outing | Obesity |
Observation | Orchard | Optic |
Ocean | Overall | Obscenity |
Oxygen | Otto | Oyster |
Observer | Obstruction | Orchid |
Operator | Oesophagus | Opium |
Orchestra | Ore | Oligonucleotide |
Opponent | Openness | Occult |
Outline | Objectivity | Old |
Organ | Overtime | Organizer |
Oven | Oxide | Oral |
Ozone | Ordnance | Organist |
Objection | Occupier | Otter |
Orange | Orthodoxy | Outflow |
Outlook | Offeror | Ovation |
Owl | Obituary | Over |
Occurrence | Outburst | Ox |
Oz | Overdraft | Op |
Orientation | Ounce | Oxidation |
Outset | Onslaught | Ollie |
Outbreak | Ombudsman | Omeprazole |
Offspring | Overflow | Originator |
Opposite | Originality | Orgasm |
Overview | Orc | Orphanage |
Optimism | Open | Octopus |
Outfit | Opener | Oversight |
Onset | Os | Overhead |
Ord | Outpatient | Overture |
Omen | Overhang | Orfe |
Omi | Oscillator | Operative |
Orphan | Ovum | Optimality |
Oscillation | Otherness | Obsidian |
25 Common Nouns That Start With O
- Ocean: A large body of saltwater that covers a significant portion of the Earth’s surface.
- Office: A place where administrative or professional work is conducted.
- Operator: Someone who operates or manages machinery or equipment.
- Organization: A group of people working together for a common purpose.
- Oxygen: A chemical element essential for the survival of most living organisms.
- Object: A tangible item that can be seen or touched.
- Obstacle: Something that hinders progress or movement.
- Occasion: A particular event or happening.
- Occupation: A person’s job or profession.
- Offer: A proposal or expression of willingness to do something.
- Officeholder: Someone who holds a position in an organization or government.
- Ointment: A substance applied to the skin for medicinal or cosmetic purposes.
- Outcome: The result or consequence of a particular action or situation.
- Opportunity: A favorable chance for advancement or success.
- Orchestra: A large ensemble of musicians playing classical music.
- Order: A request or instruction for something to be done or supplied.
- Organization: A structured group of people with a common goal or purpose.
- Origin: The point or place where something begins or is derived.
- Owner: Someone who possesses or has legal rights to something.
- Overture: An introductory musical composition or piece.
- Oven: A kitchen appliance used for baking or cooking.
- Oxygen: The vital gas necessary for breathing.
- Observation: The act of watching or perceiving something.
- Offering: Something presented for acceptance or rejection.
- Offspring: The descendants or progeny of a person, animal, or plant.
Nouns Start With O | Graphics
10 Positive Nouns That Start With O
- Optimism: A hopeful and positive outlook on life or a situation.
- Opportunity: A chance or favorable circumstance that can lead to success.
- Openness: A quality of being receptive, approachable, and willing to consider new ideas.
- Originality: The quality of being unique, creative, and innovative.
- Outstanding: Something exceptional or delicious.
- Overflow: Abundance or excess, often used in a positive context.
- Optimist: A person who tends to have a positive and hopeful attitude.
- Oneness: A state of unity or harmony, often used spiritually or philosophically.
- Overachievement: The act of surpassing expectations or achieving more than anticipated.
- Oasis: A place or situation that provides relief, comfort, or a sense of refuge.
25 List of Abstract Nouns That Start With O
- Observation: The act of closely watching or perceiving.
- Optimism: A positive outlook or belief in a favorable outcome.
- Opulence: Wealth, affluence, or luxuriousness.
- Order: A state of systematic arrangement or organization.
- Obligation: A moral or legal duty to do something.
- Originality: The quality of being innovative and unique.
- Oblivion: The state of being completely forgotten or overlooked.
- Obstacle: Something that hinders progress or achievement.
- Oneness: Unity or a state of being undivided.
- Openness: A willingness to accept new ideas and experiences.
- Optimization: The process of making something as effective or functional as possible.
- Outlook: A person’s point of view or attitude toward the future.
- Objectivity: The quality of being unbiased and impartial.
- Obedience: Compliance with authority or rules.
- Organization: The structured arrangement of elements to form a whole.
- Ovation: Enthusiastic and prolonged applause or approval.
- Ownership: The state or fact of possessing something.
- Observance: The act of adhering to or following a custom or tradition.
- Outrage: An intense feeling of anger, shock, or indignation.
- Occurrence: An instance or happening of an event.
- Outset: The beginning or starting point of something.
- Option: The freedom or choice to make decisions.
- Omnipotence: The quality of having unlimited power or authority.
- Objectification: The act of treating someone as an object rather than an individual.
- Orderliness: The state of being well-organized and tidy.
Related:
Positive Words Start With O
Adjectives That Start With O
Frequently Asked Questions (FAQS)
Q: What noun starts with an O?
A) An example of a noun starting with O is ‘ocean.'”
Q: What are 10 words that start with O?
A) Ocean, Office, Operator, Object, Outcome, Opportunity, Optimism, Overture, Oxygen, Observation.
Q: What are 50 words that start with O?
A) Oval, ocean, optimism, orchard, owl, officer, oasis, offspring, operation, olive, obstacle, origin, outcry, orbit, octopus, oxygen, offspring, outlet, ownership, overture, organ, outlook, opulence, occurrence, opposition, outfit, observance, ornament, offspring, omen, openness, oasis, orphan, outdoor, overhaul, occupancy, octave, optician, outrage, odor, outlook, organism, oxygen, office, owl, obstacle, object, offer, orbit.”
Q: What is the common noun O?
A) The common noun “O” could refer to various things, such as an object, opportunity, or organization, depending on the context.
Q: What are 20 common nouns?
A) A: Chair, dog, book, car, tree, phone, house, person, cat, computer, city, river, flower, pen, table, cup, shoe, bird, sun, and cloud are 20 common nouns.