Starting with OA
- oaf
- oahu
- oahu island
- oak
- oak tree
- oakland
- oakleaf goosefoot
- oakley
- oakum
- oar
- oarfish
- oarlock
- oarsman
- oarsmanship
- oasis
- oast
Starting with OB
- ob
- obadiah
- obbligato
- obduracy
- obeah
- obeche
- obechi
- obedience
- obedience plant
- obedient plant
- obeisance
- obelion
- obelisk
- oberson
- obesity
- obfuscation
- obi
- obiism
- obit
Starting with OC
- oca
- ocarina
- occam
- occasion
- occasions
- occident
- occidental
- occidentalism
- occiput
- occitan
- occlusion
- occlusive
- occult
- occultation
- occultism
- occultist
- occupancy
- occupant
- occupation
- occupier
More OC nouns >>
Starting with OD
- od
- odalisque
- odd fellow
- odd fish
- odd hassel
- odd man out
- oddball
- oddity
- oddment
- oddments
- oddness
- oddone colonna
- odds
- ode
- oder
- odesa
- odessa
- odets
- odin
- odiousness
More OD nouns >>
Starting with OE
- oecanthus
- oecumenism
- oed
- oedema
- oedipus
- oedipus rex
- oedogoniaceae
- oedogoniales
- oedogonium
- oenanthe
- oenanthe aquatica
- oenanthe crocata
- oengus
- oenologist
- oenology
- oenomel
- oenophile
- oenothera
- oenothera biennis
- oenothera fruticosa
More OE nouns >>
Starting with OF
- offal
- offbeat
- offenbach
- offence
- offender
- offense
- offensive
- offensiveness
- offer
- offerer
- offeror
- offertory
- office
- officeholder
- officer
- official
- official emissary
- officialdom
- officialese
- officiant
More OF nouns >>
Starting with OG
Starting with OH
Starting with OI
- oig
- oil
- oil geologist
- oil nut
- oil painter
- oil palm
- oil rigger
- oil tycoon
- oilbird
- oilcan
- oilcloth
- oiler
- oilfield
- oilfish
- oiliness
- oilman
- oilpaper
- oilrig
- oilseed
- oilskin
More OI nouns >>
Starting with OJ
Starting with OK
- ok
- oka
- okapi
- okapia
- okay
- okeechobee
- okeh
- oken
- okenfuss
- okey
- okinawa
- okla.
- oklahoma
- oklahoma city
- oklahoman
- okra
- okra plant
Starting with OL
- ola
- olaf ii
- olav ii
- old
- old bag
- old bullion
- old catholic
- old codger
- old colony
- old country
- old dominion
- old dominion state
- old geezer
- old growth
- old hand
- old hickory
- old lady
- old line state
- old maid
- old maid flower
More OL nouns >>
Starting with OM
- omaha
- oman
- omani
- omar bradley
- omar khayyam
- omar nelson bradley
- omasum
- omayyad
- omb
- ombu
- ombudsman
- omdurman
- omega
- omelet
- omelette
- omen
- omentum
- omerta
- omicron
- omission
More OM nouns >>
Starting with ON
- onager
- onagraceae
- onanist
- onchocerciasis
- oncidium
- oncidium papilio
- oncogene
- oncologist
- oncology
- oncoming
- oncorhynchus
- ondaatje
- ondatra
- one
- onega
- oneida
- oneirism
- oneiromancer
- oneiromancy
Starting with OO
- oocyte
- oodles
- oogenesis
- oology
- oolong
- oom paul kruger
- oomycetes
- oophorectomy
- oophoritis
- oophorosalpingectomy
- oort
- oosphere
- ootid
- ooze
- oozing
Starting with OP
- opacification
- opacity
- opah
- opal
- opalescence
- opaqueness
- opcw
- opec
- opel
- open
- open air
- openbill
- opener
- openhandedness
- openness
- openwork
- opepe
- opera
- opera star
- operagoer
More OP nouns >>
Starting with OR
- or
- orach
- orache
- oracle
- oral
- oral roberts
- oran
- orang
- orange
- orange balsam
- orange daisy
- orange fleabane
- orange free state
- orange grass
- orange hawkweed
- orange milkweed
- orange milkwort
- orange mushroom pimple
- orange peel fungus
- orange sneezeweed
More OR nouns >>
Starting with OS
- os
- osage
- osage orange
- osaka
- osasco
- osborne
- oscan
- oscar
- oscar hammerstein
- oscar hammerstein ii
- oscar palmer robertson
- oscar robertson
- oscar wilde
- oscheocele
- oscheocoele
- oscillation
- oscillator
- oscillatoriaceae
- oscillogram
- oscillograph
More OS nouns >>
Starting with OT
- otalgia
- otaria
- otariidae
- othello
- otherness
- otherworld
- otherworldliness
- othman i
- otho
- otho i
- otho of lagery
- othonna
- otides
- otididae
- otis
- otis skinner
- oto
- otoe
- otoganglion
- otolaryngologist
More OT nouns >>
Starting with OU
- ouachita
- oubliette
- ouguiya
- ouija
- oujda
- ounce
- ouranopithecus
- ouranos
- ouse
- ousel
- ouster
- out
- out of bounds
- outage
- outaouais
- outback
- outboard
Starting with OV
- oval
- oval kumquat
- ovalbumin
- ovalipes
- ovariectomy
- ovaritis
- ovary
- ovate leaf
- ovation
- oven
- ovenbird
- ovenware
- over
- overabundance
- overachievement
- overachiever
- overactivity
- overage
- overall
Starting with OW
Starting with OX
- ox
- oxacillin
- oxalacetate
- oxalate
- oxalidaceae
- oxalis
- oxalis acetosella
- oxalis caprina
- oxalis cernua
- oxalis corniculata
- oxalis crenata
- oxalis tuberosa
- oxalis violacea
- oxaloacetate
- oxandra
- oxandra lanceolata
- oxbow
- oxbridge
- oxcart
- oxeye
More OX nouns >>
Starting with OY
Starting with OZ
Nouns that Start with O
There are many nouns, and all of them have different meanings and uses. For people that is involved in the English language learning new nouns could be very useful to improve their writing.
Nouns that start with O denoting emotions and feelings
Odium: state of disgrace resulting from detestable behavior.
– Sometimes when people is angry, it’s too hard for them to manage the odium.
Offense: a feeling of anger caused by being offended.
– No offense, but I think you can do a better job. Next time you should try harder.
Oppression: a feeling of being oppressed.
– Black people suffered oppression for decades.
Optimism: the optimistic feeling that all is going to turn out well.
– “There will be a lot of prizes!” She exclaims with optimism.
Outrage: a feeling of righteous anger.
– I bet right now you can perceive her outrage, but it’s not your fault.
Interesting Nouns with O
Oarsman: someone who rows a boat.
– A tired oarsman rest in his boat in the middle of the river. He still has a long way to go.
Obverse: the side of a coin or medal bearing the principal stamp or design.
– The old coin has a King in the obverse and an eagle in the reverse. It is a very valuable coin.
Occiput: back part of the head or skull.
– The doctors found a rupture in the patient’s occiput. This may have caused his death.
Odalisque: a woman slave in a harem.
– The Sultan counts twenty-five odalisques in his harem, although he has a favorite one.
Oenology: the art of wine making.
-Kyle is studying oenology. Wine is his favorite drink.
Nouns that start with O referring to events
Obliteration: destruction by annihilating something.
– The movie was about aliens and obliteration. The special effects were great.
Observance: a formal event performed on a special occasion.
– The Christian observance will be scheduled for Eastern.
Ocassion: an event that occurs at a critical time. A vaguely specified social event.
– Our son’s birth was the perfect ocassion to reunite the family.
Olympics: the modern revival of the ancient games held once every 4 years in a selected country.
– I have always dreamed to go to the Olympics, as an spectator of course.
Opener: the first event in a series.
– The pop Singer, was the opener of the Rolling Stones concert.
Nouns that start with O referring to famous people
Oedipus: (Greek mythology) a tragic king of Thebes who unknowingly killed his father Laius and married his mother Jocasta; the subject of the drama `Oedipus Rex’ by Sophocles.
– Oedipus killed his father and married his mother. Now I understand when they say “Oedipus syndrome”
Ohm: German physicist who formulated Ohm’s law (1787-1854).
– George Ohm was a schoolteacher before he made his electric discoveries.
Old Bullion: German physicist who formulated Ohm’s law (1787-1854).
– U.S. Senator Thomas Benton was better known as Old Bullion. He served for thirty years.
Oliver Hardy: United States slapstick comedian who played the pompous and overbearing member of the Laurel and Hardy duo who made many films (1892-1957).
– Oliver Hardy acted with Stan Laurel for twenty-five years.
Ops: (Roman mythology) goddess of abundance and fertility; wife of Saturn; counterpart of Greek Rhea and Cybele of ancient Asia Minor.
– Ops was the deity of fertility and was married to Saturn. I didn’t know Saturn was a God too.
Orff: German musician who developed a widely used system for teaching music to children (1895-1982).
– One of my favorite cantatas is Carmina Burana from Carl Orff.