Words Starting with O and Containing R
A list of words that start with O and contain R is here. Make the most of what you need with a perfectly-curated word list created with your specific needs in mind. Find words with R and words that start with O to expand your list some more!
| 19 letter words | 1 Word |
|---|---|
| otorhinolaryngology | |
| 16 letter words | 1 Word |
|---|---|
| organophosphorus | |
| 15 letter words | 8 Words |
|---|---|
| oligosaccharide | |
| omnidirectional | |
| optoelectronics | |
| organophosphate | |
| ornithorhynchus | |
| orthokeratology | |
| orthopsychiatry | |
| oxytetracycline | |
| 14 letter words | 17 Words |
|---|---|
| obstructionist | |
| onchocerciasis | |
| operationalism | |
| operationalize | |
| organochlorine | |
| organometallic | |
| orthochromatic | |
| orthomolecular | |
| orthomyxovirus | |
| orthophosphate | |
| osteoarthritis | |
| otolaryngology | |
| overcapitalize | |
| overcompensate | |
| overcorrection | |
| overindulgence | |
| oxidoreductase | |
| 13 letter words | 20 Words |
|---|---|
| observational | |
| oleomargarine | |
| opportunistic | |
| ordzhonikidze | |
| organogenesis | |
| organotherapy | |
| organotropism | |
| ornamentation | |
| ornithischian | |
| orthocephalic | |
| orthognathous | |
| outdoorswoman | |
| overabundance | |
| overconfident | |
| overdetermine | |
| overqualified | |
| overrepresent | |
| oversubscribe | |
| ovoviviparous | |
| oystercatcher | |
| 12 letter words | 33 Words |
|---|---|
| oberammergau | |
| obscurantism | |
| obstetrician | |
| obstreperous | |
| oceanography | |
| octogenarian | |
| officeholder | |
| olfactometer | |
| olfactronics | |
| oligotrophic | |
| ombudsperson | |
| oophorectomy | |
| organization | |
| organography | |
| organoleptic | |
| organotropic | |
| orienteering | |
| orthodontics | |
| orthogenesis | |
| orthographic | |
| orthorhombic | |
| orthotropism | |
| orthotropous | |
| oscillograph | |
| osteoporosis | |
| osteosarcoma | |
| otherworldly | |
| otosclerosis | |
| overcapacity | |
| overestimate | |
| overpersuade | |
| overpopulate | |
| oversimplify | |
| 11 letter words | 63 Words |
|---|---|
| obscuration | |
| observation | |
| observatory | |
| obstruction | |
| obstructive | |
| octahedrite | |
| odontophore | |
| odoriferous | |
| offscouring | |
| oktoberfest | |
| ommatophore | |
| omnifarious | |
| omnipresent | |
| oneiromancy | |
| openhearted | |
| operational | |
| oppenheimer | |
| opportunism | |
| opportunity | |
| opprobrious | |
| optometrist | |
| orchestrate | |
| orchestrion | |
| orchidology | |
| orchidotomy | |
| orchiectomy | |
| orientalism | |
| orientalize | |
| orientation | |
| originalism | |
| originality | |
| ornithology | |
| ornithopter | |
| orthocenter | |
| orthography | |
| 10 letter words | 75 Words |
|---|---|
| oberhausen | |
| obligatory | |
| obliterate | |
| observable | |
| observance | |
| obstetrics | |
| occurrence | |
| oceanarium | |
| oceanfront | |
| ochlocracy | |
| octahedron | |
| octamerous | |
| oculomotor | |
| oglethorpe | |
| omnivorous | |
| oophoritis | |
| operculate | |
| ophiolatry | |
| oppression | |
| oppressive | |
| opprobrium | |
| orangewood | |
| oratorical | |
| orchardist | |
| orchestral | |
| ordinarily | |
| ordination | |
| ordonnance | |
| ordovician | |
| organicism | |
| organology | |
| orientalia | |
| originally | |
| ornamental | |
| ornithopod | |
| 9 letter words | 143 Words |
|---|---|
| oarswoman | |
| obcordate | |
| objurgate | |
| obscurant | |
| obscurity | |
| obsecrate | |
| observant | |
| obstetric | |
| obstruent | |
| obtrusive | |
| obversion | |
| octachord | |
| octameter | |
| ocularist | |
| oddsmaker | |
| oestrogen | |
| offertory | |
| officiary | |
| offspring | |
| oldenburg | |
| olecranon | |
| oleograph | |
| oleoresin | |
| olfactory | |
| oligarchy | |
| omnirange | |
| oncovirus | |
| operagoer | |
| operation | |
| operative | |
| opercular | |
| operculum | |
| opportune | |
| optometer | |
| optometry | |
| 8 letter words | 143 Words |
|---|---|
| obdurate | |
| oberland | |
| obituary | |
| observer | |
| obstruct | |
| obturate | |
| octonary | |
| octoroon | |
| odograph | |
| odometer | |
| odovacar | |
| oestrous | |
| offering | |
| offprint | |
| offshore | |
| ohmmeter | |
| oilpaper | |
| oistrakh | |
| oleander | |
| oleaster | |
| oligarch | |
| oliguria | |
| omdurman | |
| omnivore | |
| onlooker | |
| onstream | |
| oosphere | |
| openwork | |
| operable | |
| operatic | |
| operator | |
| operetta | |
| oracular | |
| orangery | |
| oratorio | |
| 7 letter words | 124 Words |
|---|---|
| oarfish | |
| oarlock | |
| oarsman | |
| obligor | |
| obscure | |
| observe | |
| obtrude | |
| obverse | |
| ocarina | |
| ochroid | |
| october | |
| odoacer | |
| odorant | |
| odorous | |
| oersted | |
| oestrus | |
| officer | |
| offramp | |
| oilbird | |
| oldster | |
| olivary | |
| olivier | |
| oloroso | |
| omicron | |
| onboard | |
| oneiric | |
| onerous | |
| onsager | |
| onshore | |
| ontario | |
| oophoro | |
| oosperm | |
| oospore | |
| operand | |
| operant | |
| 6 letter words | 64 Words |
|---|---|
| oberon | |
| obvert | |
| octroi | |
| ocular | |
| oeuvre | |
| ogress | |
| oliver | |
| omerta | |
| onager | |
| onrush | |
| onward | |
| opener | |
| operon | |
| oporto | |
| oracle | |
| oradea | |
| orange | |
| orangy | |
| orator | |
| orcein | |
| orchid | |
| orchil | |
| orchis | |
| ordain | |
| ordeal | |
| ordure | |
| orebro | |
| oregon | |
| organo | |
| orgasm | |
| orgeat | |
| orgone | |
| orient | |
| origen | |
| origin | |
| 5 letter words | 49 Words |
|---|---|
| oared | |
| oater | |
| occur | |
| ocher | |
| ochre | |
| ocker | |
| ocrea | |
| odour | |
| offer | |
| ofris | |
| ofuro | |
| oiler | |
| older | |
| omber | |
| ombre | |
| opera | |
| ophir | |
| orach | |
| orama | |
| orang | |
| orate | |
| orbit | |
| orchi | |
| orcus | |
| order | |
| oread | |
| organ | |
| oribi | |
| oriel | |
| orion | |
| orlon | |
| orlop | |
| ormer | |
| ormuz | |
| ornis | |
| 4 letter words | 24 Words |
|---|---|
| oder | |
| odor | |
| odra | |
| ogre | |
| okra | |
| omer | |
| orad | |
| oral | |
| oran | |
| orca | |
| orch | |
| ordo | |
| orel | |
| orem | |
| oreo | |
| orff | |
| orgy | |
| orig | |
| orle | |
| orsk | |
| oryx | |
| orzo | |
| ours | |
| over | |
| 3 letter words | 14 Words |
|---|---|
| oar | |
| ocr | |
| ofr | |
| oir | |
| ora | |
| orb | |
| orc | |
| ord | |
| ore | |
| org | |
| oro | |
| ort | |
| ory | |
| our | |
| 2 letter words | 1 Word |
|---|---|
| or | |
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