8-letter words starting with O
972 words — Scrabble scores shown
There are 972 8-letter words that start with the letter O in our word list. All words are valid in standard English dictionaries and can be used in Scrabble and Words with Friends. The number shown on each word is its Scrabble point value.
2-letter
(14)
3-letter
(45)
4-letter
(107)
5-letter
(181)
6-letter
(326)
7-letter
(618)
8-letter
(972)
9-letter
(922)
10-letter
(791)
11-letter
(591)
12-letter
(419)
13-letter
(305)
14-letter
(215)
15-letter
(159)
- omniform15↗
- omnimode13↗
- omnivora13↗
- omnivore13↗
- omophagy19↗
- omphalos15↗
- onanisms10↗
- onanists8↗
- oncidium13↗
- oncogene11↗
- oncology14↗
- oncoming13↗
- ondogram12↗
- oneriest8↗
- onlooker12↗
- onrushes11↗
- onstream10↗
- ontogeny12↗
- ontology12↗
- oogamete11↗
- oogamies11↗
- oogamous11↗
- oogenies9↗
- oogonial9↗
- oogonium11↗
- oolachan13↗
- oologies9↗
- oologist9↗
- oomiacks16↗
- oompahed16↗
- oophytes16↗
- oophytic18↗
- oosperms12↗
- oosphere13↗
- oospores10↗
- oosporic12↗
- oothecae13↗
- oothecal13↗
- ooziness17↗
- opalesce12↗
- opalines10↗
- opaquely22↗
- opaquest19↗
- opaquing20↗
- openable12↗
- opencast12↗
- openings11↗
- openness10↗
- openwork17↗
- operable12↗
- operably15↗
- operands11↗
- operants10↗
- operated11↗
- operates10↗
- operatic12↗
- operator10↗
- opercele12↗
- opercula12↗
- opercule12↗
- operetta10↗
- ophidian14↗
- opiating11↗
- opinions10↗
- opiumism14↗
- opossums12↗
- oppidans13↗
- oppilant12↗
- oppilate12↗
- opponent12↗
- opposers12↗
- opposing13↗
- opposite12↗
- oppugned14↗
- oppugner13↗
- opsonify16↗
- opsonins10↗
- opsonize19↗
- optative13↗
- optician12↗
- opticist12↗
- optimise12↗
- optimism14↗
- optimist12↗
- optimize21↗
- optimums14↗
- optional10↗
- optioned11↗
- optionee10↗
- opulence12↗
- opulency15↗
- opuntias10↗
- opuscula12↗
- opuscule12↗
- oquassas17↗
- oracular10↗
- oralisms10↗
- oralists8↗
- orangery12↗
- orangier9↗
- orangish12↗
- orations8↗
- oratorio8↗
- oratress8↗
- orbitals10↗
- orbiters10↗
- orbiting11↗
- orchards14↗
- orchises13↗
- orchitic15↗
- orchitis13↗
- orcinols10↗
- ordained10↗
- ordainer9↗
- orderers9↗
- ordering10↗
- ordinals9↗
- ordinand10↗
- ordinary12↗
- ordinate9↗
- ordnance11↗
- orective13↗
- oreganos9↗
- organdie10↗
- organics11↗
- organise9↗
- organism11↗
- organist9↗
- organize18↗
- organons9↗
- organums11↗
- organzas18↗
- orgasmic13↗
- orgastic11↗
- orgulous9↗
- oribatid11↗
- oriental8↗
- oriented9↗
- orifices13↗
- origamis11↗
- origanum11↗
- original9↗
- orinasal8↗
- ornament10↗
- ornately11↗
- ornerier8↗
- ornithes11↗
- ornithic13↗
- orogenic11↗
- orometer10↗
- orphaned14↗
- orphical15↗
- orphreys16↗
- orpiment12↗
- orreries8↗
- orthicon13↗
- orthodox19↗
- orthoepy16↗
- orthoses11↗
- orthosis11↗
- orthotic13↗
- ortolans8↗
- oscinine10↗
- oscitant10↗
- osculant10↗
- osculate10↗
- osmosing11↗
- osmundas11↗
- osnaburg11↗
- ossicles10↗
- ossified12↗
- ossifier11↗
- ossifies11↗
- osteitic10↗
- osteitis8↗
- osteoids9↗
- osteomas10↗
- osteoses8↗
- osteosis8↗
- ostinato8↗
- ostiolar8↗
- ostioles8↗
- ostmarks14↗
- ostomies10↗
- ostracod11↗
- ostracon10↗
- otalgias9↗
- otalgies9↗
- otiosely11↗
- otiosity11↗
- otitides9↗
- otocysts13↗
- otoliths11↗
- otoscope12↗
- otoscopy15↗
- ototoxic17↗
- ottomans10↗
- ouabains10↗
- oughting13↗
- ouistiti8↗