13-Letter Words Matching _____O______S

There are 349 13-letter words that match _____O______S. 78 are common words, such as AMELIORATIONS and ARCHEOLOGISTS. A rarer one is TYPEFOUNDINGS. In this set, I is the most frequent open letter (273 words). 28 words contain a doubled letter.

Full list 349

Common words

ameliorationsarcheologistsaristocraciesbroncobusterscardiologistschronologistscolonoscopiesconglomeratescontroversiesdemagogueriesdemigoddessesdemimondaines
ameliorationsarcheologistsaristocraciesbroncobusterscardiologistschronologistscolonoscopiesconglomeratescontroversiesdemagogueriesdemigoddessesdemimondainesdethronementsecholocationsembryologistsemotionalismsemotionalizesenthronementsentomologistsequivocalnessequivocationsfactionalismsfictionalizesflamboyanciesfluorocarbonsfuturologistsgraphologistsgynecologistshematologistsheterogeneousheterosexualsimmunologistsinvigorationsirresolutionskleptomaniacsmademoisellesmegalomaniacsmegalopolisesmeritocraciesmetamorphismsmetamorphosesmetamorphosismillionnairesminicomputersmispronouncesmisquotationsmusicologistsnumerologistsnymphomaniacsoutspokennessoverpopulatesperitonitisesphrenologistsphysiognomiesphysiologistspostponementspraseodymiumspsychobabblespsychologistspsychopathiespsychotropicsreallocationsredecorationssailboardingssectionalismsseismologistssemiconscioussemimonthliesshallownessessnowboardingsspeleologistsstratospherestechnocraciestechnologiststelecommuterstoxicologistsurbanologistswhippoorwillspsychokinesisactinomycetesactinomycosesactinomycosisarsenopyritesarthroscopiesautomorphismsbibliolatriesblastogenesesblastogenesisblastosphereschalcopyritescuckooflowerscumulostratusdemonolatrieselasmobranchsendomorphismsenterovirusesentomophagousentomophilousescapologistsfluoroscopiesforeconsciousfractocumulusfractostratusfrontogenesisgametogenesisgastrocnemiusglaciologistsgonadotropinsgriseofulvinsgyrocompasseshematogenesishematopoiesishemimorphitesheterogenesesheterogenesisheteropterousheterosporoushomomorphismshymenopteranshymenopterousinhomogeneousinteroperateslaparoscopieslepidopteranslepidopterouslexicologistslymphocytosismegalocardiasmillionairessmorphogenesisnaturopathiesnympholepsiesorganogenesisphlebotomizespleomorphismspoltrooneriespolymorphismsproctologistspsephologistspsychogenesispsychokinesespsychometricspsychometriespsychophysicsreimpositionsrhombohedronsschizogenesisschizothymiasstercoraceousstereoscopiesstratocumulussurfboardingsthermocouplesthermogenesisthermometriesthermospheresthermostaticsunimportancesviceroyaltiesactinometriesadrenochromesagroforestersailurophobiasallelopathiesallomorphismsanecdotalismsanecdotalistsangelologistsantibourgeoisanticolonialsanticonsumersantinovelistsantiromanticsantiroyalistsarthropathiesatherogenesesatherogenesisautomobilistsautorotationsbackcountriesbibliolatrousbibliomaniacsbibliopegistsbibliophiliesbibliopolistsblastomycosesblastomycosiscamphoraceouscardiopathieschalcogenideschlorohydrinschloropicrinschromocenterschromosphereschronometriesconchologistsconglobationscontroverterscraniometriescryptologistscryptorchismsdechlorinatesdemonologistsdendrologistsdeontologistsdichromatismsdilatometriesdynamometrieseasygoingnessembryogenesesembryogenesisemotionalistsenterocoelousenterocolitisenterokinasesenteropathiesenterostomiesentomophiliesenzymologistseosinophiliasequipollencesethanolaminesexobiologistsexteroceptorsfellmongeriesfictionalisesfluorochromesfluorometriesfluorouracilsfrontogenesesfurazolidonesgametogenesesgastronomistsgastroscopiesglossolalistsgynecocraciesgynecomastiashematophagoushematopoieseshemimorphismsheterocyclicsheterocystousheterogametesheterokaryonsheterophoniesheterosporiesheterozygosesheterozygosisheterozygoteshomologationshymenopteronsimmunogenesesimmunogenesisinteroceptorsironmongerieslabanotationslymphocytoseslymphomatoseslymphomatosismalacologistsmelanogenesesmelanogenesismetasomatismsmisknowledgesmonomorphismsmorphogenesesmorphologistsmorphometriesmycetophagousnematologistsnephrologistsnephropathiesnonbiologistsnonbroadcastsnoneconomistsnonphosphatesnucleocapsidsnucleotidasesoceanologistsoneiromanciesonychophoransorganogenesesoverconsciousoverdocumentsoverlordshipsovernourishespalynologistspapyrologistsparamountciesperitonitidesphentolaminesphlebotomistsphotooxidizesplantocraciesplastocyaninspneumonitidespneumonitisespogonophoranspostbourgeoispostpositionspreprocessorsproteoglycanspseudoallelespseudomonadespsychogenesespsychologisespsychologismspsychologizespsychopathicspyridoxaminespyromorphitesretinopathiesretinoscopiesrhabdomancersrhabdomanciesrhabdovirusesrockhoundingsschizophrenesseismometriesselenologistssnowmobilingssnowmobilistssoliloquizerssomatopleuressomatostatinssomatotropinsstereoisomersstereophoniesstereopticonsstichomythiasstichomythiesstratocraciessuperovulatessurgeonfishestechnobabblestechnologizestechnophobiastensiometriesteratogenesesteratogenesisteratologiststhermophiloustotipotenciestrampoliningstrampoliniststrichologiststrichopteranstriphosphatestypefoundings

About this list

Words
349 (78 common words)
Common example
ameliorations
Rare example
typefoundings
Doubled letters
28
Ending in S
349
Most frequent letter
I (273)

Questions

How many 13-letter words matching _____o______s are there?

349. 78 of them are common words.

What is a common example?

AMELIORATIONS is among the common words in this set.