13-letter words starting with O

305 words — Scrabble scores shown

There are 305 13-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)

objectionable²⁶↗
objectionably²⁹↗
objectiveness²⁷↗
objectivistic²⁹↗
objectivities²⁷↗
obliquenesses²⁴↗
obliterations¹⁵↗
obliviousness¹⁸↗
obnoxiousness²²↗
obnubilations¹⁷↗
obscurantisms¹⁹↗
obscurantists¹⁷↗
obscurenesses¹⁷↗
observability²³↗
observational¹⁸↗
observatories¹⁸↗
obsessionally¹⁸↗
obsessiveness¹⁸↗
obsolescences¹⁹↗
obsolescently²⁰↗
obstetrically²⁰↗
obstetricians¹⁷↗
obstinateness¹⁵↗
obstructively²³↗
obtainability²⁰↗
obtrusiveness¹⁸↗
obviousnesses¹⁸↗
occidentalize²⁷↗
oceanographer²¹↗
oceanographic²³↗
oceanologists¹⁶↗
ochlocratical²²↗
octodecillion¹⁸↗
octogenarians¹⁶↗
octosyllabics²²↗
octosyllables²⁰↗
odontoblastic¹⁸↗
odontoglossum¹⁷↗
odoriferously²⁰↗
odorousnesses¹⁴↗
offensiveness²²↗
offhandedness²⁴↗
officeholders²⁵↗
officiousness²¹↗
oleandomycins²¹↗
oleomargarine¹⁶↗
olfactometers²⁰↗
oligopolistic¹⁸↗
ombudsmanship²⁵↗
ominousnesses¹⁵↗
omnicompetent²¹↗
omnipresences¹⁹↗
oneiromancies¹⁷↗
onerousnesses¹³↗
ongoingnesses¹⁵↗
onomastically²⁰↗
onomasticians¹⁷↗
onomatologies¹⁶↗
onomatologist¹⁶↗
onomatopoeias¹⁷↗
onomatopoetic¹⁹↗
ontologically¹⁹↗
onychophorans²⁶↗
openabilities¹⁷↗
openheartedly²²↗
openmouthedly²⁴↗
operabilities¹⁷↗
operationally¹⁸↗
operationisms¹⁷↗
operationists¹⁵↗
operativeness¹⁸↗
operosenesses¹⁵↗
ophthalmology²⁷↗
opinionatedly¹⁹↗
opisthobranch²⁵↗
opportuneness¹⁷↗
opportunistic¹⁹↗
opportunities¹⁷↗
oppositionist¹⁷↗
opprobriously²²↗
optimisations¹⁷↗
optimizations²⁶↗
optionalities¹⁵↗
oracularities¹⁵↗
orchestraters¹⁸↗
orchestrating¹⁹↗
orchestration¹⁸↗
orchestrators¹⁸↗
orderlinesses¹⁴↗
organisations¹⁴↗
organizations²³↗
organogeneses¹⁵↗
organogenesis¹⁵↗
organogenetic¹⁷↗
orgiastically¹⁹↗
orientalizing²³↗
orientational¹³↗
orienteerings¹⁴↗
originalities¹⁴↗
originatively²⁰↗
orismological¹⁸↗
ornamentation¹⁵↗
ornithischian²¹↗
ornithologies¹⁷↗
ornithologist¹⁷↗
oropharyngeal²²↗
orthodontists¹⁷↗
orthoepically²³↗
orthogonality²⁰↗
orthogonalize²⁶↗
orthographies²²↗
orthopterists¹⁸↗
orthopteroids¹⁹↗
oscillational¹⁵↗
oscillographs²¹↗
oscillography²⁴↗
oscilloscopes¹⁹↗
oscilloscopic²¹↗
ossifications¹⁸↗
osteomalacias¹⁷↗
osteomyelitis¹⁸↗
osteoplasties¹⁵↗
osteosarcomas¹⁷↗
ototoxicities²²↗
outbargaining¹⁷↗
outdelivering¹⁸↗
outdistancing¹⁷↗
outgeneraling¹⁵↗
outglittering¹⁵↗
outintriguing¹⁵↗
outmaneuvered¹⁹↗
outmanipulate¹⁷↗
outorganizing²⁴↗
outperforming²¹↗
outplacements¹⁹↗
outpoliticked²²↗
outpopulating¹⁸↗
outrebounding¹⁷↗
outreproduced¹⁹↗
outreproduces¹⁸↗
outspokenness¹⁹↗
outstandingly¹⁸↗
outstretching¹⁹↗
outwardnesses¹⁷↗
ovariectomies²⁰↗
overabstracts²⁰↗
overabundance²¹↗
overachievers²⁴↗
overachieving²⁵↗
overadvertise²⁰↗
overambitious²⁰↗
overamplified²⁴↗
overanalyzing²⁹↗
overanxieties²³↗
overarranging¹⁸↗
overasserting¹⁷↗
overassertion¹⁶↗
overassertive¹⁹↗
overattention¹⁶↗
overbalancing²¹↗
overbearingly²²↗
overbejeweled²⁹↗
overbleaching²⁴↗
overborrowing²²↗
overbreathing²²↗
overburdening²⁰↗
overcautioned¹⁹↗
overcivilized³¹↗
overcommitted²³↗
overconcerned²¹↗
overconfident²²↗
overconscious²⁰↗
overconstruct²⁰↗
overconsuming²¹↗
overcorrected²¹↗
overcredulous¹⁹↗
overdecorated²⁰↗
overdecorates¹⁹↗
overdemanding²¹↗
overdependent²⁰↗
overdesigning¹⁹↗
overdeveloped²³↗
overdirecting²⁰↗
overdiscounts¹⁹↗
overdiversity²³↗
overdocuments²¹↗
overdominance²¹↗
overdramatize²⁸↗
overeagerness¹⁷↗
overeducating²⁰↗
overeducation¹⁹↗
overelaborate¹⁸↗
overembellish²³↗
overemotional¹⁸↗
overemphasize³²↗
overencourage¹⁹↗
overenergetic¹⁹↗
overengineers¹⁷↗
overestimated¹⁹↗
overestimates¹⁸↗

13-letter words starting with O

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