14-Letter Words Starting With O

There are 229 14-letter words that start with O. 57 are common words, such as OBDURATENESSES and OBSEQUIOUSNESS. A rarer one is OXYMORONICALLY. In this set, E is the most frequent open letter (204 words). 57 words contain a doubled letter.

Full list 229

Common words

obduratenessesobsequiousnessobstreperouslyobstructionismobstructionistoccupationallyoceanographersoceanographiesoleomargarinesomnivorousnessopenhandednessoppressiveness
obduratenessesobsequiousnessobstreperouslyobstructionismobstructionistoccupationallyoceanographersoceanographiesoleomargarinesomnivorousnessopenhandednessoppressivenessoptimisticallyorchestrationsordinarinessesorganizationalornamentationsornithologicalornithologistsostentatiouslyosteoarthritisoutlandishnessoutmaneuveringoutmanoeuvringoverabundancesoveraggressiveovercapacitiesovercapitalizeovercompensateoverconfidenceoverdecoratingoverdevelopingoveremphasizedoveremphasizesoverestimatingoverestimationoverexercisingovergeneralizeoverindulgenceoveroptimisticoverparticularoverpopulatingoverpopulationoverpoweringlyoverproductionoverprotectingoverprotectiveoversimplifiedoversimplifiesoverspecializeoverstatementsoverstimulatedoverstimulatesoversubscribedoversubscribesoversuspiciousoverwhelminglyobligingnessesobsoletenessesoligarchicallyomnicompetenceoophorectomiesophthalmitisesophthalmologicophthalmoscopeophthalmoscopyoppositenessesoptoelectronicorchidectomiesorganochlorineorganometallicornithischiansorobanchaceousorographicallyorthochromaticorthographicalorthopedicallyosteoarthriticotolaryngologyoutrageousnessoverabundantlyoverburdensomeovercommitmentovercomplacentoverdependenceoverdeterminedoverdramatizedoverdramatizesoverenthusiasmoverexcitementoverfastidiousoveridealisticoverinsistenceovermedicationoverprescribedoverprescribesoverprotectionoverrefinementoverregulationoverscrupulousoversolicitousoverspecifyingoverstretchingovervaluationsoystercatchersobjectlessnessoccidentalizedoccidentalizesoctodecillionsodontoglossumsoleaginousnessoligopsonisticombudsmanshipsomphaloskepsesomphaloskepsisonchocerciasesonchocerciasisoncogenicitiesoncornavirusesonomatologistsoperationalismoperationalistopinionativelyopisthobranchsopposabilitiesoppositionistsorganismicallyorthogonalizedorthogonalizesorthomolecularorthophosphateoscillographicosmoregulationosmoregulatoryosteosarcomataoutdatednessesoutgoingnessesoutmanipulatedoutmanipulatesoutpolitickingoutreproducingoutsidernessesovariectomizedoverabstractedoveraccentuateoveractivitiesoveradjustmentoveradvertisedoveradvertisesoveranalyticaloverarticulateoverassertionsoverassessmentoverattentionsovercautioningovercentralizeoverclassifiedoverclassifiesovercommittingovercomplianceovercomplicateovercompressedovercompressesoverconcerningoverconstructsovercontrolledovercorrectingovercorrectionoverdecorationoverdiscountedoverdocumentedoverdominancesovereducationsoverelaboratedoverelaboratesoverencouragedoverencouragesoverengineeredoverevaluationoverexaggerateoverexpansionsoverexplainingoverexploitingoverextensionsoverextractionoverfertilizedoverfertilizesoverfulfillingovergenerosityovergenerouslyoverglamorizedoverglamorizesoverharvestingoverhomogenizeoveridealizingoveridentifiedoveridentifiesoverimpressingoverinflationsoverinvestmentoverlengthenedovermaturitiesovermedicatingovernourishingovernutritionsoverorganizingoverornamentedoverpersuadingoverpersuasionoverprivilegedoverprocessingoverprogramingoverprogrammedoverproportionoverregulatingoverrespondingoversaturatingoversaturationoversecretionsoversimplisticoverspeculatedoverspeculatesoverstructuredoversweeteningovertighteningovertreatmentsoxidoreductaseoxyhemoglobinsoxymoronically

About this list

Words
229 (57 common words)
Common example
obduratenesses
Rare example
oxymoronically
Doubled letters
57
Ending in S
82
Most frequent letter
E (204)

Questions

How many 14-letter words starting with o are there?

229. 57 of them are common words.

What is a common example?

OBDURATENESSES is among the common words in this set.