13-Letter Words Starting With O
There are 305 thirteen-letter words starting with O in our dictionary; 83 of them are common words.
Type your own letters to find only the 13-letter words you can make, or leave it empty to open this list in the word finder.
All 305 words
- opportunities17 points
- objectionable26 points
- organizations23 points
- ophthalmology27 points
- overshadowing24 points
- offensiveness22 points
- orthogonality20 points
- overburdening20 points
- orchestrating19 points
- overestimated19 points
- observatories18 points
- orchestration18 points
- outstandingly18 points
- overestimates18 points
- obstetricians17 points
- ornithologist17 points
- orthodontists17 points
- outdistancing17 points
- overextending25 points
- outperforming21 points
- overpopulated21 points
- overpopulates20 points
- opportunistic19 points
- outmaneuvered19 points
- outspokenness19 points
- outstretching19 points
- operationally18 points
- overemphasize32 points
- objectionably29 points
- overqualified29 points
- objectiveness27 points
- optimizations26 points
- officeholders25 points
- overachieving25 points
- overachievers24 points
- oversupplying24 points
- obstructively23 points
- oceanographic23 points
- orthographies22 points
- overconfident22 points
- overproducing22 points
- oceanographer21 points
- officiousness21 points
- overabundance21 points
- overbalancing21 points
- overambitious20 points
- overspreading20 points
- oscilloscopes19 points
- overindulging19 points
- oversensitive19 points
- obliviousness18 points
- observational18 points
- obtrusiveness18 points
- overreactions18 points
- overstatement18 points
- octogenarians16 points
- oleomargarine16 points
- ornamentation15 points
- offhandedness24 points
- overdeveloped23 points
- overweeningly23 points
- obnoxiousness22 points
- overstretched22 points
- oversubscribe22 points
- overstretches21 points
- overwintering20 points
- overvaluation19 points
- obsessionally18 points
- overexercised26 points
- overexercises25 points
- opprobriously22 points
- overbearingly22 points
- overprotected21 points
- overdecorated20 points
- overdependent20 points
- onomatopoetic19 points
- overdecorates19 points
- overmastering19 points
- obsessiveness18 points
- overemotional18 points
- overindulgent18 points
- overstimulate18 points
- obscurantists17 points
- objectivistic29 points
- overdramatize28 points
- ombudsmanship25 points
- overexpansion25 points
- ovoviviparous24 points
- observability23 points
- orientalizing23 points
- oystercatcher23 points
- overprescribe22 points
- omnicompetent21 points
- ornithischian21 points
- oscillographs21 points
- oscilloscopic21 points
- overtightened21 points
- obsolescently20 points
- octosyllables20 points
- odoriferously20 points
- ovariectomies20 points
- ontologically19 points
- orgiastically19 points
- overassertive19 points
- octodecillion18 points
- oligopolistic18 points
- orchestrators18 points
- osteomyelitis18 points
- overelaborate18 points
- obscurenesses17 points
- opportuneness17 points
- osteomalacias17 points
- overstraining17 points
- overstressing17 points
- overinsistent16 points
- organogenesis15 points
- outgeneraling15 points
- orientational13 points
- overcivilized31 points
- oxyhemoglobin31 points
- overanalyzing29 points
- overbejeweled29 points
- overfertilize28 points
- overglamorize28 points
- overzealously28 points
- objectivities27 points
- occidentalize27 points
- overexpanding27 points
- overidealized27 points
- overorganized27 points
- onychophorans26 points
- orthogonalize26 points
- overexplained26 points
- overexploited26 points
- overidealizes26 points
- overorganizes26 points
- overpackaging26 points
- overutilizing26 points
- overwithholds26 points
- opisthobranch25 points
- overexposures25 points
- overexuberant25 points
- obliquenesses24 points
- openmouthedly24 points
- oscillography24 points
- outorganizing24 points
- overamplified24 points
- overbleaching24 points
- overweighting24 points
- orthoepically23 points
- overanxieties23 points
- overcommitted23 points
- overdiversity23 points
- overembellish23 points
- overexertions23 points
- overextension23 points
- overfulfilled23 points
- overharvested23 points
- overtalkative23 points
- overtaxations23 points
- ochlocratical22 points
- octosyllabics22 points
- openheartedly22 points
- oropharyngeal22 points
- ototoxicities22 points
- outpoliticked22 points
- overborrowing22 points
- overbreathing22 points
- overfocussing22 points
- overinforming22 points
- overlordships22 points
- overmedicated22 points
- overoptimisms22 points
- overprogramed22 points
- overservicing22 points
- oxaloacetates22 points
- oleandomycins21 points
- overconcerned21 points
- overconsuming21 points
- overcorrected21 points
- overdemanding21 points
- overdocuments21 points
- overdominance21 points
- overgoverning21 points
- overimpressed21 points
- overmedicates21 points
- overprocessed21 points
- overpromising21 points
- overpromoting21 points
- overslaughing21 points
- overstability21 points
- obstetrically20 points
- obtainability20 points
- olfactometers20 points
- onomastically20 points
- originatively20 points
- overabstracts20 points
- overadvertise20 points
- overconscious20 points
- overconstruct20 points
- overdirecting20 points
- overeducating20 points
- overimpresses20 points
- overinflating20 points
- overingenuity20 points
- overlengthens20 points
- overmodulated20 points
- overnourished20 points
- overoptimists20 points
- overpedalling20 points
- overpersuaded20 points
- overprocesses20 points
- overresponded20 points
- overspeculate20 points
- oversweetened20 points
- obscurantisms19 points
- obsolescences19 points
- omnipresences19 points
- opinionatedly19 points
- orthopteroids19 points
- outplacements19 points
- outreproduced19 points
- overcautioned19 points
- overcredulous19 points
- overdesigning19 points
- overdiscounts19 points
- overeducation19 points
- overencourage19 points
- overenergetic19 points
- overinflation19 points
- overintensity19 points
- overnourishes19 points
- overoperating19 points
- overpersuades19 points
- overreporting19 points
- overseriously19 points
- oversweetness19 points
- obviousnesses18 points
- odontoblastic18 points
- operativeness18 points
- orchestraters18 points
- orismological18 points
- orthopterists18 points
- ossifications18 points
- outdelivering18 points
- outpopulating18 points
- outreproduces18 points
- overarranging18 points
- overissuances18 points
- overornaments18 points
- overpressures18 points
- overregulated18 points
- overreliances18 points
- oversecretion18 points
- overtreatment18 points
- ovipositional18 points
- obnubilations17 points
- odontoglossum17 points
- oneiromancies17 points
- onomasticians17 points
- onomatopoeias17 points
- openabilities17 points
- operabilities17 points
- operationisms17 points
- oppositionist17 points
- optimisations17 points
- organogenetic17 points
- ornithologies17 points
- osteosarcomas17 points
- outbargaining17 points
- outmanipulate17 points
- outrebounding17 points
- outwardnesses17 points
- overasserting17 points
- overeagerness17 points
- overengineers17 points
- overingenious17 points
- overregulates17 points
- oversaturated17 points
- oceanologists16 points
- onomatologies16 points
- onomatologist16 points
- overassertion16 points
- overattention16 points
- overnutrition16 points
- oversaturates16 points
- obliterations15 points
- obstinateness15 points
- ominousnesses15 points
- ongoingnesses15 points
- operationists15 points
- operosenesses15 points
- optionalities15 points
- oracularities15 points
- organogeneses15 points
- oscillational15 points
- osteoplasties15 points
- outglittering15 points
- outintriguing15 points
- odorousnesses14 points
- orderlinesses14 points
- organisations14 points
- orienteerings14 points
- originalities14 points
- onerousnesses13 points
Quick facts
- Total words: 305
- By usage: 18 very common, 65 common, 222 rare
Highest scoring (classic tiles)
- overemphasize 32
- overcivilized 31
- oxyhemoglobin 31
- objectionably 29
- objectivistic 29
- overanalyzing 29
- overbejeweled 29
- overqualified 29
- overdramatize 28
- overfertilize 28
Most common
- opportunities
- objectionable
- organizations
- ophthalmology
- overshadowing
- offensiveness
- orthogonality
- overburdening
- orchestrating
- overestimated
Definitions
- objectionable (adjective)
- Causing disapproval or protest.
- ophthalmology (noun)
- The branch of medicine concerned with the eye and its diseases.
- offensiveness (noun)
- The quality of being offensive.
- orthogonality (noun)
- The relation of opposition between things at right angles.
Looking for thirteen-letter words starting with O? You are in the right place. This list has 305 of them, sorted so the familiar words such as OPPORTUNITIES and OBJECTIONABLE appear before the obscure ones. Every entry is a real dictionary word, and every score badge is computed from standard tile values. Use the filters in the search box to keep only the words that also fit the other letters on your rack or the pattern in your puzzle.
How to use this page
To use this page, start with the search box. Type the letters on your rack, add a question mark for each blank, and press search. The tool keeps this page's constraint and returns only the words you can spell. Below the box, the full list is arranged with common words first, followed by the quick facts, definitions and related lists.
Tips
If you know some letters of a word and their positions, a pattern search finds it faster than scanning a list. Open the word finder, type the word with question marks for the unknown letters, and every match appears immediately. You can combine a pattern with the starts-with and ends-with filters to narrow the set further. This works for crosswords, for daily five-letter puzzles and for any tile game where a board word gives you two or three fixed letters.
Questions
Which thirteen-letter words starting with O are the most common?
OPPORTUNITIES, OBJECTIONABLE and ORGANIZATIONS are among the most familiar. The list is sorted with everyday words first, and the very common ones carry a small dot, so you can read the top of the page and skip the obscure entries at the bottom.
Can I search this list with my own letters?
Yes. Type your letters into the search box at the top of the page, using a question mark for a blank, and the tool will show only the thirteen-letter words starting with O you can actually spell from that rack, with scores.