13 Letter Words Starting with O
There are 305 13-letter English words that start with O, ranging alphabetically from OBJECTIONABLE to OYSTERCATCHER. Top Scrabble® scorers on this list: OVEREMPHASIZE (32), OVERCIVILIZED (31), OXYHEMOGLOBIN (31). Roughly 7% of these words end in E, so an E-hook on the board is worth watching for.
Word list
O
- OBJECTIONABLE26 pts
- OBJECTIONABLY29 pts
- OBJECTIVENESS27 pts
- OBJECTIVISTIC29 pts
- OBJECTIVITIES27 pts
- OBLIQUENESSES24 pts
- OBLITERATIONS15 pts
- OBLIVIOUSNESS18 pts
- OBNOXIOUSNESS22 pts
- OBNUBILATIONS17 pts
- OBSCURANTISMS19 pts
- OBSCURANTISTS17 pts
- OBSCURENESSES17 pts
- OBSERVABILITY23 pts
- OBSERVATIONAL18 pts
- OBSERVATORIES18 pts
- OBSESSIONALLY18 pts
- OBSESSIVENESS18 pts
- OBSOLESCENCES19 pts
- OBSOLESCENTLY20 pts
- OBSTETRICALLY20 pts
- OBSTETRICIANS17 pts
- OBSTINATENESS15 pts
- OBSTRUCTIVELY23 pts
- OBTAINABILITY20 pts
- OBTRUSIVENESS18 pts
- OBVIOUSNESSES18 pts
- OCCIDENTALIZE27 pts
- OCEANOGRAPHER21 pts
- OCEANOGRAPHIC23 pts
- OCEANOLOGISTS16 pts
- OCHLOCRATICAL22 pts
- OCTODECILLION18 pts
- OCTOGENARIANS16 pts
- OCTOSYLLABICS22 pts
- OCTOSYLLABLES20 pts
- ODONTOBLASTIC18 pts
- ODONTOGLOSSUM17 pts
- ODORIFEROUSLY20 pts
- ODOROUSNESSES14 pts
- OFFENSIVENESS22 pts
- OFFHANDEDNESS24 pts
- OFFICEHOLDERS25 pts
- OFFICIOUSNESS21 pts
- OLEANDOMYCINS21 pts
- OLEOMARGARINE16 pts
- OLFACTOMETERS20 pts
- OLIGOPOLISTIC18 pts
- OMBUDSMANSHIP25 pts
- OMINOUSNESSES15 pts
- OMNICOMPETENT21 pts
- OMNIPRESENCES19 pts
- ONEIROMANCIES17 pts
- ONEROUSNESSES13 pts
- ONGOINGNESSES15 pts
- ONOMASTICALLY20 pts
- ONOMASTICIANS17 pts
- ONOMATOLOGIES16 pts
- ONOMATOLOGIST16 pts
- ONOMATOPOEIAS17 pts
- ONOMATOPOETIC19 pts
- ONTOLOGICALLY19 pts
- ONYCHOPHORANS26 pts
- OPENABILITIES17 pts
- OPENHEARTEDLY22 pts
- OPENMOUTHEDLY24 pts
- OPERABILITIES17 pts
- OPERATIONALLY18 pts
- OPERATIONISMS17 pts
- OPERATIONISTS15 pts
- OPERATIVENESS18 pts
- OPEROSENESSES15 pts
- OPHTHALMOLOGY27 pts
- OPINIONATEDLY19 pts
- OPISTHOBRANCH25 pts
- OPPORTUNENESS17 pts
- OPPORTUNISTIC19 pts
- OPPORTUNITIES17 pts
- OPPOSITIONIST17 pts
- OPPROBRIOUSLY22 pts
- OPTIMISATIONS17 pts
- OPTIMIZATIONS26 pts
- OPTIONALITIES15 pts
- ORACULARITIES15 pts
- ORCHESTRATERS18 pts
- ORCHESTRATING19 pts
- ORCHESTRATION18 pts
- ORCHESTRATORS18 pts
- ORDERLINESSES14 pts
- ORGANISATIONS14 pts
- ORGANIZATIONS23 pts
- ORGANOGENESES15 pts
- ORGANOGENESIS15 pts
- ORGANOGENETIC17 pts
- ORGIASTICALLY19 pts
- ORIENTALIZING23 pts
- ORIENTATIONAL13 pts
- ORIENTEERINGS14 pts
- ORIGINALITIES14 pts
- ORIGINATIVELY20 pts
- ORISMOLOGICAL18 pts
- ORNAMENTATION15 pts
- ORNITHISCHIAN21 pts
- ORNITHOLOGIES17 pts
- ORNITHOLOGIST17 pts
- OROPHARYNGEAL22 pts
- ORTHODONTISTS17 pts
- ORTHOEPICALLY23 pts
- ORTHOGONALITY20 pts
- ORTHOGONALIZE26 pts
- ORTHOGRAPHIES22 pts
- ORTHOPTERISTS18 pts
- ORTHOPTEROIDS19 pts
- OSCILLATIONAL15 pts
- OSCILLOGRAPHS21 pts
- OSCILLOGRAPHY24 pts
- OSCILLOSCOPES19 pts
- OSCILLOSCOPIC21 pts
- OSSIFICATIONS18 pts
- OSTEOMALACIAS17 pts
- OSTEOMYELITIS18 pts
- OSTEOPLASTIES15 pts
- OSTEOSARCOMAS17 pts
- OTOTOXICITIES22 pts
- OUTBARGAINING17 pts
- OUTDELIVERING18 pts
- OUTDISTANCING17 pts
- OUTGENERALING15 pts
- OUTGLITTERING15 pts
- OUTINTRIGUING15 pts
- OUTMANEUVERED19 pts
- OUTMANIPULATE17 pts
- OUTORGANIZING24 pts
- OUTPERFORMING21 pts
- OUTPLACEMENTS19 pts
- OUTPOLITICKED22 pts
- OUTPOPULATING18 pts
- OUTREBOUNDING17 pts
- OUTREPRODUCED19 pts
- OUTREPRODUCES18 pts
- OUTSPOKENNESS19 pts
- OUTSTANDINGLY18 pts
- OUTSTRETCHING19 pts
- OUTWARDNESSES17 pts
- OVARIECTOMIES20 pts
- OVERABSTRACTS20 pts
- OVERABUNDANCE21 pts
- OVERACHIEVERS24 pts
- OVERACHIEVING25 pts
- OVERADVERTISE20 pts
- OVERAMBITIOUS20 pts
- OVERAMPLIFIED24 pts
- OVERANALYZING29 pts
- OVERANXIETIES23 pts
- OVERARRANGING18 pts
- OVERASSERTING17 pts
- OVERASSERTION16 pts
- OVERASSERTIVE19 pts
- OVERATTENTION16 pts
- OVERBALANCING21 pts
- OVERBEARINGLY22 pts
- OVERBEJEWELED29 pts
- OVERBLEACHING24 pts
- OVERBORROWING22 pts
- OVERBREATHING22 pts
- OVERBURDENING20 pts
- OVERCAUTIONED19 pts
- OVERCIVILIZED31 pts
- OVERCOMMITTED23 pts
- OVERCONCERNED21 pts
- OVERCONFIDENT22 pts
- OVERCONSCIOUS20 pts
- OVERCONSTRUCT20 pts
- OVERCONSUMING21 pts
- OVERCORRECTED21 pts
- OVERCREDULOUS19 pts
- OVERDECORATED20 pts
- OVERDECORATES19 pts
- OVERDEMANDING21 pts
- OVERDEPENDENT20 pts
- OVERDESIGNING19 pts
- OVERDEVELOPED23 pts
- OVERDIRECTING20 pts
- OVERDISCOUNTS19 pts
- OVERDIVERSITY23 pts
- OVERDOCUMENTS21 pts
- OVERDOMINANCE21 pts
- OVERDRAMATIZE28 pts
- OVEREAGERNESS17 pts
- OVEREDUCATING20 pts
- OVEREDUCATION19 pts
- OVERELABORATE18 pts
- OVEREMBELLISH23 pts
- OVEREMOTIONAL18 pts
- OVEREMPHASIZE32 pts
- OVERENCOURAGE19 pts
- OVERENERGETIC19 pts
- OVERENGINEERS17 pts
- OVERESTIMATED19 pts
- OVERESTIMATES18 pts
- OVEREXERCISED26 pts
- OVEREXERCISES25 pts
- OVEREXERTIONS23 pts
- OVEREXPANDING27 pts
- OVEREXPANSION25 pts
- OVEREXPLAINED26 pts
- OVEREXPLOITED26 pts
- OVEREXPOSURES25 pts
- OVEREXTENDING25 pts
- OVEREXTENSION23 pts
- OVEREXUBERANT25 pts
- OVERFERTILIZE28 pts
- OVERFOCUSSING22 pts
- OVERFULFILLED23 pts
- OVERGLAMORIZE28 pts
- OVERGOVERNING21 pts
- OVERHARVESTED23 pts
- OVERIDEALIZED27 pts
- OVERIDEALIZES26 pts
- OVERIMPRESSED21 pts
- OVERIMPRESSES20 pts
- OVERINDULGENT18 pts
- OVERINDULGING19 pts
- OVERINFLATING20 pts
- OVERINFLATION19 pts
- OVERINFORMING22 pts
- OVERINGENIOUS17 pts
- OVERINGENUITY20 pts
- OVERINSISTENT16 pts
- OVERINTENSITY19 pts
- OVERISSUANCES18 pts
- OVERLENGTHENS20 pts
- OVERLORDSHIPS22 pts
- OVERMASTERING19 pts
- OVERMEDICATED22 pts
- OVERMEDICATES21 pts
- OVERMODULATED20 pts
- OVERNOURISHED20 pts
- OVERNOURISHES19 pts
- OVERNUTRITION16 pts
- OVEROPERATING19 pts
- OVEROPTIMISMS22 pts
- OVEROPTIMISTS20 pts
- OVERORGANIZED27 pts
- OVERORGANIZES26 pts
- OVERORNAMENTS18 pts
- OVERPACKAGING26 pts
- OVERPEDALLING20 pts
- OVERPERSUADED20 pts
- OVERPERSUADES19 pts
- OVERPOPULATED21 pts
- OVERPOPULATES20 pts
- OVERPRESCRIBE22 pts
- OVERPRESSURES18 pts
- OVERPROCESSED21 pts
- OVERPROCESSES20 pts
- OVERPRODUCING22 pts
- OVERPROGRAMED22 pts
- OVERPROMISING21 pts
- OVERPROMOTING21 pts
- OVERPROTECTED21 pts
- OVERQUALIFIED29 pts
- OVERREACTIONS18 pts
- OVERREGULATED18 pts
- OVERREGULATES17 pts
- OVERRELIANCES18 pts
- OVERREPORTING19 pts
- OVERRESPONDED20 pts
- OVERSATURATED17 pts
- OVERSATURATES16 pts
- OVERSECRETION18 pts
- OVERSENSITIVE19 pts
- OVERSERIOUSLY19 pts
- OVERSERVICING22 pts
- OVERSHADOWING24 pts
- OVERSLAUGHING21 pts
- OVERSPECULATE20 pts
- OVERSPREADING20 pts
- OVERSTABILITY21 pts
- OVERSTATEMENT18 pts
- OVERSTIMULATE18 pts
- OVERSTRAINING17 pts
- OVERSTRESSING17 pts
- OVERSTRETCHED22 pts
- OVERSTRETCHES21 pts
- OVERSUBSCRIBE22 pts
- OVERSUPPLYING24 pts
- OVERSWEETENED20 pts
- OVERSWEETNESS19 pts
- OVERTALKATIVE23 pts
- OVERTAXATIONS23 pts
- OVERTIGHTENED21 pts
- OVERTREATMENT18 pts
- OVERUTILIZING26 pts
- OVERVALUATION19 pts
- OVERWEENINGLY23 pts
- OVERWEIGHTING24 pts
- OVERWINTERING20 pts
- OVERWITHHOLDS26 pts
- OVERZEALOUSLY28 pts
- OVIPOSITIONAL18 pts
- OVOVIVIPAROUS24 pts
- OXALOACETATES22 pts
- OXYHEMOGLOBIN31 pts
- OYSTERCATCHER23 pts
Point values shown are Scrabble® (letters only, before board bonuses). Browse deeper via the word-lists hub.
Top 10 highest-scoring words
Scored on letters only (no board bonuses). WWF uses different tile values from Scrabble — J, Q and Z are worth 10 points in WWF; X is worth 8.
| # | Word | Scrabble | WWF |
|---|---|---|---|
| 1 | overemphasize | 32 | 34 |
| 2 | overcivilized | 31 | 35 |
| 3 | oxyhemoglobin | 31 | 34 |
| 4 | objectionably | 29 | 35 |
| 5 | objectivistic | 29 | 35 |
| 6 | overbejeweled | 29 | 34 |
| 7 | overanalyzing | 29 | 33 |
| 8 | overqualified | 29 | 32 |
| 9 | overglamorize | 28 | 32 |
| 10 | overzealously | 28 | 31 |
Strategy for this list
O is worth 1 in Scrabble and starts ~3,500 words. O has three two-letter words (OE, OF, OH, OI, OM, ON, OP, OR, OS, OW, OX, OY) and combines beautifully with X, Z and Y for premium plays. O-openers with premium potential include OYEZ, OZONE, OXBLOOD. In Wordle, O is second-most-common in position 4 (SHOWN, ALONG, ABOUT) but less common in position 1.
FAQs
How many 13-letter words start with O?
305 valid 13-letter English words begin with O in the ENABLE English word list.
Are these valid in Wordle and Scrabble?
Words on this page come from the ENABLE English word list. UK Scrabble (Collins Scrabble Words) accepts the overwhelming majority; a handful may not be legal in the North American NASPA Word List (NWL2023).