14-Letter Words Containing OS

There are 317 14-letter words that contain OS. 61 are common words, such as APPOSITENESSES and BRONTOSAURUSES. A rarer one is XENODIAGNOSTIC. In this set, I is the most frequent open letter (249 words). 68 words contain a doubled letter.

Full list 317

Common words

appositenessesbrontosaurusescosmetologistsdecompositionsdiagnosticallydiagnosticiansdispossessionselectrostaticsexpostulationsfossilizationsgeneralissimosgeosynchronous
appositenessesbrontosaurusescosmetologistsdecompositionsdiagnosticallydiagnosticiansdispossessionselectrostaticsexpostulationsfossilizationsgeneralissimosgeosynchronousidiosyncrasiesindispositionsinterpositionsintrospectionsjuxtapositionsmetamorphosingmetempsychosesmetempsychosismicrosurgeriesneurosurgeriesnitrocellulosenondisclosuresostentatiouslyosteoarthritisphilosophizersphilosophizingphosphorescentphotosensitivephotosynthesesphotosynthesisphotosyntheticpositivenessespossessivenesspostindustrialpostmenopausalpostmistressespostmodernismspostmodernistspredispositionprepossessionspreposterouslypresuppositionprognosticatedprognosticatesprognosticatorpropositioningpseudosciencespsychoneurosespsychoneurosispurposefulnessretrospectionsretrospectivessacrosanctnessscrupulositiesspectroscopiessubmicroscopicsuperpositionstranspositionsunderexposuresamphiarthrosisanamorphoscopeapostrophizingasthenospheresautosuggestionbacteriostasesbacteriostasiscarcinomatosischemosyntheseschemosynthesischemosyntheticcontrapositioncontrapositivecorticosteroidcorticosteronecosmetologicalcosmochemistrycosmologicallycrosspollinatedeipnosophistsdextroglucosesdiplostemonousdiverticulosesdiverticulosiselectrodepositelectrosurgeryexophthalmosesgyroscopicallygyrostabilizerheterosexuallyhistoplasmosishydrocellulosehyperkeratosisimmunosuppresslamellirostrallignocellulosemagnetospheresmagnetosphericmeticulositiesmicrostructuremonosaccharidemucoviscidosisnarcosynthesisneuroscientistophthalmoscopeophthalmoscopyoppositenessesosteoarthriticphenosafraninephosphoproteinphosphoroscopephotosensitizephytosociologypneumoconiosespneumoconiosispostadolescentpostcollegiateposterioritiespostpubescenceproscriptivelyprostheticallyprosthodonticsprosthodontistpsychosomaticsradiosensitiveroentgenoscopesalpiglossisesspectroscopistsubatmosphericsuperphosphatesuppositiouslysupposititioustachistoscopestheosophicallythyrotoxicosesthyrotoxicosistracheostomiesunostentatiousaerosolizationaggiornamentosaldosteronismsallostericallyamphiprostylesankylosaurusesanticorrosivesantihomosexualaposematicallyapostolicitiesapostrophisingasthenosphericautosuggestingbacteriostaticbiostatisticalbiosystematicsbiosystematistblepharospasmsbronchoscopiesbronchoscopistbronchospasticcarcinomatosescarcinosarcomacephalosporinschemosurgerieschiaroscuristschlamydosporescomposednessescoprosperitiescosmographicalcosmopolitismscosponsorshipscrossabilitiescryptococcosescryptococcosiscytostaticallyechinococcosesechinococcosiselectroosmoseselectroosmosiselectroosmoticendoscopicallyeugeosynclinaleugeosynclinesfibrosarcomatafluoroscopistsgalactosaminesgalactosidasesgastroscopistsgeostrategistsglossographersglycosidicallyglycosylationshallucinosiseshemicellulosesheterokaryosesheterokaryosisheterozygosityhexosaminidasehistoplasmoseshomozygositieshygroscopicityhyperkeratoseshyperviscosityhyposensitizedhyposensitizeshypostaticallyichthyosaurianimmunosorbentsimpossiblenessinappositenessindecomposableisochromosomeslachrymositieslaparoscopistslaryngoscopiesleukocytosiseslignosulfonatelymphosarcomasmacrostructuremalacostracansmetaphosphatesmicrosphericalmicrosporangiamicrosporocytemispositioningneurosecretionneurosecretorynonchromosomalnondepositionsnonhomosexualsnonhygroscopicnonphilosophernonpossessionsodontoglossumsomphaloskepsesomphaloskepsisopposabilitiesoppositionistsorthophosphateoscillographicosmoregulationosmoregulatoryosteosarcomataovergenerositypaedomorphosespaedomorphosispararosanilinephilosophisingphosphokinasesphospholipasesphosphorescingphosphorolysesphosphorolysisphosphorolyticphosphorylasesphosphorylatedphosphorylatesphotocomposersphotocomposingphotosynthatesphysostigminespossessionlesspostamputationpostcapitalistpostconceptionpostconventionpostcopulatorypostdebutantespostdepressionposterolateralpostexperiencepostganglionicpostgraduationposthumousnesspostliberationpostmastectomypostmastershippostmillennialpostpositionalpostpositivelypostproductionpostpubescentspostretirementposttensioningprosencephalicprosencephalonprosperousnessprostaglandinspseudoscorpionpsychosexuallypsychosociallypsychosurgeonspsychosurgicalpyrophosphatesradiostrontiumrecompositionsredispositionsrehospitalizedrehospitalizesrhodochrositesribonucleosideserodiagnosticseropositivitysporotrichosessporotrichosisstereospecificstratovolcanossuperimposablesupervirtuosostachistoscopicthermostattingtreponematosestreponematosisungenerositiesurediniosporesvoluminositiesxenodiagnostic

About this list

Words
317 (61 common words)
Common example
appositenesses
Rare example
xenodiagnostic
Doubled letters
68
Ending in S
169
Most frequent letter
I (249)

Questions

How many 14-letter words containing os are there?

317. 61 of them are common words.

What is a common example?

APPOSITENESSES is among the common words in this set.