There are a total of 1222 11-letter words containing 'os', and the number may vary in different dictionaries. You can specify the dictionary and order.
- actomyosins 20
- adiposities 15
- aeciospores 17
- aerosolized 22
- aerosolizes 21
- aerospheres 16
- aerostatics 14
- aficionados 19
- afrormosias 17
- agamospermy 24
- agnosticism 20
- agrostology 18
- albatrosses 15
- aldosterone 14
- allargandos 17
- allegrettos 15
- allosaurian 15
- allosteries 13
- altostratus 13
- ambrosially 21
- amyloidoses 18
- amyloidosis 18
- anadiploses 17
- anadiplosis 17
- anastomosed 16
- anastomoses 15
- anastomosis 15
- angiosperms 20
- angwantibos 21
- animosities 15
- ankylosaurs 20
- anorthosite 14
- anthracnose 18
- antileprosy 18
- apatosaurus 16
- aponeuroses 16
- aponeurosis 16
- aposematism 20
- aposiopeses 17
- aposiopesis 17
- aposiopetic 20
- apostatical 18
- apostatised 15
- apostatises 14
- apostatized 24
- apostatizes 23
- apostlebird 19
- apostleship 20
- apostolates 15
- apostrophes 19
- apostrophic 22
- apotheosise 16
- apotheosize 25
- appositions 18
- appositives 21
- arabinoside 16
- arthroscope 19
- arthroscopy 21
- arthrospore 16
- atmosphered 20
- atmospheres 19
- atmospheric 22
- autocrosses 15
- autoshaping 20
- autosomally 19
- autostradas 13
- autosuggest 17
- avgolemonos 22
- azoospermia 26
- azoospermic 29
- backcrossed 25
- backcrosses 24
- baldachinos 22
- bellicosely 22
- bellicosity 21
- berylliosis 18
- billposters 19
- billposting 22
- biocoenoses 18
- biocoenosis 18
- biosafeties 17
- biosciences 21
- biosecurity 20
- biosimilars 18
- biosocially 21
- blastospore 18
- blogosphere 22
- boosterisms 17
- bossinesses 15
- brontosauri 16
- brontosaurs 16
- brownnosers 19
- brownnosing 22
- brucelloses 20
- brucellosis 20
- callosities 16
- camerlengos 21
- cappuccinos 28
- capriccioso 23
- carabineros 18
- carpospores 20
- cavaquinhos 31
- cellobioses 19
- cellulosics 21
- cenospecies 21
- centrosomes 18
- cerebroside 18
- chiaroscuro 20
- chloralosed 19
- chloraloses 18
- chromosomal 23
- chromosomes 22
- cirrostrati 14
- closefisted 19
- closenesses 16
- closestools 16
- clostridial 17
- clostridium 20
- coccidioses 21
- coccidiosis 21
- cocomposers 23
- coelurosaur 17
- cognoscente 21
- cognoscenti 21
- cognoscible 24
- cohostessed 17
- cohostesses 16
- colonoscope 22
- colonoscopy 24
- colostomies 18
- colposcopes 24
- compositely 23
- compositing 23
- composition 21
- compositors 20
- compossible 24
- compostable 24
- concertinos 19
- contagiosum 21
- corrosively 21
- corymbosely 25
- coscripting 23
- cosignatory 19
- cosmetician 21
- cosmeticize 29
- cosmetology 22
- cosmodromes 21
- cosmogenies 20
- cosmogonies 20
- cosmogonist 20
- cosmography 26
- cosmologies 20
- cosmologist 20
- cosmopolite 21
- cosponsored 19
- costiveness 19
- costumeries 18
- cotylosaurs 18
- counterpose 19
- crossbanded 20
- crossbarred 18
- crossbearer 17
- crossbowman 24
- crossbowmen 24
- crossbreeds 18
- crosschecks 26
- crossfading 21
- crossguards 18
- crosslegged 20
- crossmember 23
- crossnesses 15
- crosspieces 20
- crossposted 18
- crossruffed 22
- cryoscopies 22
- cryosurgeon 20
- cryosurgery 21
- curiosities 15
- cycloserine 21
- cyclosporin 24
- cyclostomes 23
- cyclostyled 24
- cyclostyles 23
- cystoscopes 22
- cystoscopic 25
- cytostatics 19
- decomposers 21
- decomposing 24
- deoxyribose 24
- depositions 16
- diagnosable 19
- diagnostics 18
- diapositive 19
- diarthroses 14
- diarthrosis 14
- dichroscope 23
- dictyosomes 20
- dictyostele 18
- didgeridoos 16
- didjeridoos 23
- diminuendos 19
- dinosaurian 15
- diphosgenes 20
- diphosphate 22
- disbosoming 21
- disclosable 20
- disclosures 17
- discomposed 22
- discomposes 21
- displosions 17
- disposables 19
- disposition 16
- dispositive 19
- dispositors 15
- dosimetries 15
- doublecross 20
- dromaeosaur 16
- drosophilas 18
- dysprosiums 21
- easternmost 15
- echosounder 19
- eicosanoids 16
- eighteenmos 19
- elasmosaurs 16
- embossments 21
- enarthroses 14
- enarthrosis 14
- endocytoses 18
- endocytosis 18
- endoglossic 19
- endomitoses 16
- endomitosis 16
- endoscopies 19
- endoscopist 19
- endosteally 17
- endosulfans 19
- engrossment 18
- enterostomy 17
- eosinophils 18
- ergospheres 18
- ergosterols 14
- erosionally 16
- erosiveness 16
- erosivities 15
- erythrosine 16
- erythrosins 16
- exoskeletal 24
- exoskeleton 24
- explosively 29
- expositions 22
- expostulate 23
- farthermost 19
- fazendeiros 25
- femtosecond 22
- fetoscopies 20
- fianchettos 20
- fingerposts 20
- fluoroscope 22
- fluoroscopy 24
- foreclosing 21
- foreclosure 19
- fortepianos 18
- fortissimos 17
- fossilising 18
- fossilizing 27
- fosterlings 18
- frostbiting 20
- frostbitten 18
- furanosides 17
- furosemides 19
- furthermost 20
- galactoside 18
- galactosyls 20
- ganglioside 18
- garimpeiros 19
- gastroscope 19
- gastroscopy 21
- gastrostomy 18
- geosciences 20
- geostrategy 17
- geostrophic 21
- geosyncline 21
- ghostbuster 19
- ghostliness 17
- ghostwriter 18
- ghostwrites 18
- gibbosities 19
- glossarists 14
- glossitises 14
- glossolalia 16
- glossolalic 19
- glucosamine 22
- glucosidase 19
- glycosidase 20
- glycosurias 20
- glycosylate 22
- gnosticisms 20
- goosefishes 18
- goosenecked 22
- gospelising 20
- gospelizing 29
- grandiosely 18
- grandiosity 17
- grossnesses 14
- gymnosperms 25
- gymnospermy 27
- haciendados 19
- haemostasis 16
- haemostatic 19
- hagioscopes 21
- hagioscopic 24
- heliosphere 19
- hemosiderin 18
- hemostatics 19
- heterospory 18
- heterostyly 18
- hideosities 14
- homeostases 16
- homeostasis 16
- homeostatic 19
- homosexuals 25
- homospories 19
- homosporous 20
- homozygoses 29
- homozygosis 29
- hospitalers 17
- hospitalise 17
- hospitalism 20
- hospitality 19
- hospitalize 26
- hospitaller 18
- hostilities 14
- hullabaloos 20
- hydroslides 18
- hydrospaces 22
- hydrosphere 21
- hydrostatic 19
- hygroscopes 23
- hygroscopic 26
- hyoscyamine 24
- hypoglossal 22
- hypospadias 22
- hypostasise 18
- hypostasize 27
- hypostatize 27
- ichthyosaur 21
- iconoscopes 21
- iconostases 15
- iconostasis 15
- icosahedral 18
- icosahedron 18
- ileostomies 15
- impetuosity 20
- impositions 18
- imposthumes 23
- impresarios 17
- incuriosity 18
- indisposing 19
- inosculated 18
- inosculates 17
- insinuendos 16
- intercostal 16
- intermezzos 33
- interposers 15
- interposing 18
- introspects 18
- ionospheres 17
- ionospheric 20
- iridosmines 16
- juxtaposing 34
- ketosteroid 16
- kinetoscope 22
- kinetosomes 19
- lactoscopes 21
- langostinos 16
- laparoscope 21
- laparoscopy 23
- latifundios 18
- lepospondyl 23
- leprosarium 19
- leptospiral 19
- leptospires 18
- limoncellos 21
- liposuction 20
- listerioses 12
- listeriosis 12
- lithosphere 19
- loosenesses 13
- loosestrife 15
- losableness 17
- lumbosacral 23
- macintoshes 20
- macrocosmic 26
- macrofossil 21
- macroscales 21
- macroscopic 26
- malposition 19
- mangosteens 18
- maraschinos 20
- melanosomes 19
- melioidosis 16
- meromyosins 20
- mesonephros 20
- mesospheres 19
- mesospheric 22
- metachrosis 19
- metanephros 20
- metrosexual 23
- microcosmic 26
- microcosmos 23
- microfossil 21
- microscales 21
- microscopes 23
- microscopic 26
- microsecond 22
- microseisms 20
- microsphere 22
- microspores 20
- microstates 17
- microswitch 25
- milliosmols 20
- misdiagnose 18
- misposition 18
- mochaccinos 26
- monostables 19
- monostelies 16
- monstrosity 17
- mosstrooper 17
- motocrosser 17
- motocrosses 17
- moustachios 20
- myoinositol 18
- myxomatoses 26
- myxomatosis 26
- nannofossil 18
- nanofossils 17
- nanoscience 20
- nanoseconds 18
- necrobiosis 18
- neostigmine 18
- nephoscopes 23
- nephrostome 20
- nervosities 16
- neurosporas 16
- nimbostrati 18
- nitrosamine 16
- noncomposer 22
- nonhospital 19
- nonprossing 19
- nontobaccos 22
- nosographic 22
- nosological 19
- nosologists 15
- nostalgists 15
- nucleosides 18
- nucleosomal 21
- nucleosomes 20
- octodecimos 21
- ohnoseconds 19
- operoseness 15
- opisthosoma 19
- oppositions 18
- orthoscopic 22
- orthostatic 16
- orthostichy 20
- oscillating 19
- oscillation 17
- oscillators 16
- oscillatory 18
- oscillogram 21
- osculations 17
- osmiridiums 19
- osmometries 17
- osmotically 21
- ostensively 19
- ostensories 12
- ostensorium 16
- ostentation 13
- osteoblasts 15
- osteoclasts 15
- osteologies 14
- osteologist 14
- osteopathic 19
- osteophytes 18
- osteophytic 21
- osteoplasty 17
- osteotomies 14
- ostracising 17
- ostracizing 26
- ostracoderm 18
- ostrichlike 21
- ouroboroses 15
- outcrossing 18
- outgrossing 17
- overdosages 18
- overexposed 26
- overexposes 25
- ovipositing 21
- oviposition 19
- ovipositors 18
- ozonosphere 26
- parasitoses 14
- parasitosis 14
- paternoster 15
- peccadillos 23
- pediculoses 20
- pediculosis 20
- pelycosaurs 21
- periostites 14
- periostitis 14
- permafrosts 20
- phagocytose 23
- philosopher 22
- philosophes 22
- philosophia 22
- philosophic 25
- phosphatase 21
- phosphatide 22
- phosphatize 30
- phosphonate 22
- phosphonium 26
- phosphorite 21
- phosphorous 22
- phosphoryls 24
- photomosaic 22
- photosetter 16
- photoshoots 18
- photosphere 21
- photostated 17
- photostatic 19
- photosystem 21
- phytosterol 19
- pianissimos 18
- picoseconds 22
- pigmentosum 24
- pinocytoses 20
- pinocytosis 20
- pittosporum 21
- pleocytosis 20
- plesiosaurs 16
- pomposities 20
- ponderosity 18
- portamentos 18
- portobellos 19
- positioners 15
- positioning 18
- positivisms 21
- positivists 18
- positronium 19
- posological 21
- possessedly 18
- possessions 15
- possessives 18
- possibility 20
- postclassic 21
- postcollege 21
- postconcert 21
- postcranial 19
- postdivorce 22
- postediting 18
- posterchild 21
- posteriorly 17
- posterising 17
- posterities 14
- posterizing 26
- postforming 23
- postfrontal 19
- postgenomic 23
- postglacial 21
- postharvest 20
- postholiday 20
- postillions 17
- postlanding 20
- postmarital 18
- postmarking 24
- postmasters 17
- postmortems 20
- postnatally 19
- postnuptial 20
- postoffices 23
- postorbital 18
- postponable 22
- postprimary 22
- postpuberty 23
- postscripts 20
- postseasons 15
- postsyncing 23
- posttension 16
- postulating 19
- postulation 17
- postulators 16
- postulatory 18
- postvocalic 25
- postweaning 21
- praepostors 17
- predisposed 19
- predisposes 18
- preexposure 25
- preposition 18
- prepositive 21
- presupposed 22
- presupposes 21
- proboscides 21
- proboscises 20
- proctoscope 23
- proctoscopy 25
- prognostics 20
- proposition 18
- prosaically 21
- prosaicness 18
- prosauropod 19
- prosceniums 22
- prosciuttos 18
- proscribers 20
- proscribing 23
- prosecuting 21
- prosecution 19
- prosecutors 18
- proselyting 20
- proselytise 17
- proselytism 20
- proselytize 26
- proseminars 18
- prosenchyma 25
- prosinesses 15
- prosobranch 23
- prospecting 23
- prospective 24
- prospectors 20
- prostatisms 17
- prostatites 14
- prostatitis 14
- prosthetics 19
- prosthetist 16
- prostituted 16
- prostitutes 15
- prostitutor 15
- prostrating 17
- prostration 15
- protosteles 15
- protostelic 18
- protostomes 17
- provostship 23
- psittacoses 17
- psittacosis 17
- purposeless 19
- purposively 25
- pyranosides 18
- radiophotos 17
- radioscopic 21
- radiosondes 14
- recitativos 18
- recomposing 23
- redeposited 16
- redisposing 18
- reexposures 22
- religiosity 16
- renosterbos 15
- reposefully 22
- repositions 15
- repossessed 15
- repossesses 14
- repossessor 14
- repurposing 21
- retinoscopy 20
- retrospects 17
- rhizosphere 27
- rhynchosaur 22
- ritardandos 14
- ritornellos 14
- rosefinches 20
- rosemalings 18
- rosticceria 17
- rotoscoping 20
- rudderposts 17
- saltarellos 14
- sarcoidoses 15
- sarcoidosis 15
- scherzandos 27
- schistosity 18
- schistosome 19
- semifreddos 19
- semipostals 18
- shahtooshes 17
- shigelloses 17
- shigellosis 17
- shongololos 18
- shovelnoses 19
- siderostats 12
- signposting 20
- sinuosities 13
- sitosterols 12
- sociosexual 23
- sphingosine 20
- spikemosses 21
- spinosities 15
- spondylosis 19
- squooshiest 23
- statoscopes 17
- stegosaurus 15
- stereoscope 17
- stereoscopy 19
- stethoscope 19
- strenuosity 15
- stringendos 16
- stroboscope 20
- sumptuosity 21
- supercargos 20
- superimpose 21
- supermachos 23
- supermicros 21
- superposing 21
- supposition 19
- suppository 20
- switcheroos 19
- symposiarch 24
- symposiasts 19
- synaptosome 20
- syndesmoses 18
- syndesmosis 18
- technospeak 24
- teliospores 15
- tenebrosity 17
- testcrossed 15
- testcrosses 14
- theosophers 18
- theosophies 18
- theosophist 18
- thermoscope 22
- thermostats 16
- thimerosals 17
- thiosulfate 18
- thrombosing 22
- transposals 16
- transposers 15
- transposing 18
- transposons 16
- trichinoses 17
- trichinosis 17
- tropomyosin 20
- troposphere 19
- trypanosome 20
- turboshafts 20
- typhlosoles 20
- tyrannosaur 16
- tyrosinases 14
- uncrossable 20
- underbosses 17
- underexpose 24
- undiagnosed 18
- undisclosed 19
- unloosening 18
- unpossessed 17
- urediospore 16
- uredospores 16
- vasospastic 21
- verboseness 19
- verbosities 18
- villancicos 24
- villosities 17
- viscosities 18
- webhostings 22
- westernmost 18
- whosesoever 20
- alprostadil 14
- anchylosing 20
- bioprospect 19
- blossomings 16
- boskinesses 17
- brachiosaur 18
- cariosities 13
- chemosorbed 21
- coscenarist 15
- cosmolining 16
- cyclosporas 20
- didanosines 13
- dubiosities 14
- exocytosing 24
- frostfishes 20
- globosities 14
- glyphosates 20
- hegumenoses 17
- homostylies 19
- horoscopies 18
- hospitalist 16
- leptophoses 18
- microsensor 15
- mischoosing 19
- misoprostol 15
- monoskiings 18
- mossinesses 13
- nonaerosols 11
- nostologies 12
- oscitancies 15
- plumosities 15
- portabellos 15
- postmoderns 16
- prechoosing 19
- preexposing 23
- preimposing 18
- semiglosses 14
- superjumbos 24
- teleosteans 11
- underdosing 14
- yoctosecond 19
- zeptosecond 25
- adelantados 13
- aecidospore 16
- aerosolised 12
- aerosolises 11
- aerostation 11
- affettuosos 17
- agranuloses 12
- agranulosis 12
- agrostemmas 16
- akoluthoses 18
- aldohexoses 22
- aldopentose 14
- aluminosity 16
- amorosities 13
- ampullosity 18
- anapleroses 13
- anaplerosis 13
- androsphinx 24
- anemoscopes 17
- anthracoses 16
- anthracosis 16
- aplanospore 15
- apostolical 15
- apostolised 14
- apostolises 13
- apostolized 23
- apostolizes 22
- apostrophus 18
- araeostyles 14
- areosystile 14
- aryballoses 16
- astrosphere 16
- autoscopies 15
- azygospores 26
- bacterioses 15
- bacteriosis 15
- benthoscope 20
- beryllioses 16
- bladdernose 15
- blossomless 15
- bromidroses 16
- bromidrosis 16
- bulbosities 15
- calcedonios 16
- camerlingos 16
- cancioneros 15
- capodastros 16
- carnosities 13
- catenaccios 17
- centrosomic 17
- cespitosely 18
- ceteosaurus 13
- cheechalkos 25
- chemosmoses 20
- chemosmosis 20
- chemosmotic 22
- chemosphere 23
- christcross 18
- chromoscope 22
- chronoscope 20
- cicatricose 17
- ciclosporin 17
- circumposed 20
- circumposes 19
- cladosporia 16
- clostridian 14
- coenosteums 15
- comancheros 20
- compositive 20
- compositous 17
- compostured 18
- compostures 17
- conirostral 13
- coprosterol 15
- cornettinos 13
- cosmeticise 17
- cosmeticism 19
- cosmocratic 19
- cosmosphere 20
- cosmotheism 20
- cosmothetic 20
- costeanings 14
- costotomies 15
- cranioscopy 20
- crapulosity 18
- crossandras 14
- crossbirths 18
- crossbiting 16
- crossbitten 15
- crossbowers 18
- crossclaims 17
- crossfishes 19
- crosslights 17
- decomposite 18
- disembosoms 18
- disenclosed 15
- disencloses 14
- disinclosed 15
- disincloses 14
- disposingly 18
- dosimetrist 14
- dosiologies 13
- drosometers 14
- drosophilae 17
- ebriosities 13
- ecospecific 22
- ectosarcous 15
- eglandulose 13
- emblossomed 18
- endospermic 18
- endosporous 14
- engrossedly 16
- eosinophile 16
- eriostemons 13
- estancieros 13
- estrangelos 12
- eurodeposit 14
- exposedness 21
- expositress 20
- extraposing 21
- felspathose 19
- flypostings 20
- folliculose 16
- fossickings 21
- fosteringly 18
- fungosities 15
- furiosities 14
- gastrosophs 17
- gastrosophy 20
- glasnostian 12
- gliomatoses 14
- gliomatosis 14
- globoseness 14
- glossectomy 19
- glossodynia 16
- glucosurias 14
- glutinosity 15
- gnathostome 17
- gnostically 17
- gnotobioses 14
- gnotobiosis 14
- gonioscopes 16
- goosinesses 12
- gospellised 15
- gospellises 14
- gospellized 24
- gospellizes 23
- gossipingly 18
- grossierete 12
- gummosities 16
- gynostemium 19
- gyroscopics 21
- gyrostatics 17
- hadrosaurus 15
- haemostases 16
- haemostasia 16
- hectosteres 16
- helioscopes 18
- helioscopic 20
- heliostatic 16
- hemostasias 16
- hepatoscopy 23
- heteroscian 16
- hircosities 16
- horoscopist 18
- hostellings 15
- hydroscopes 22
- hydroscopic 24
- hydrosomata 20
- hyperinoses 19
- hyperinosis 19
- hyperosmias 21
- hypostatise 19
- hyposthenia 22
- hyposthenic 24
- hypostrophe 24
- hypotyposes 24
- hypotyposis 24
- ichnofossil 19
- icosandrian 14
- icosandrous 14
- idioglossia 13
- implosively 21
- impossibles 17
- imposthumed 21
- impostorous 15
- impostumate 17
- imposturous 15
- incomposite 17
- incrossbred 16
- infospheres 19
- infracostal 16
- inquirendos 21
- interosseal 11
- interposals 13
- intertrigos 12
- iridosmiums 16
- isapostolic 15
- isoseismals 13
- isoseismics 15
- jejunostomy 30
- jocoserious 20
- josephinite 23
- jostlements 20
- lactosurias 13
- lamellosity 16
- latirostral 11
- lentiginose 12
- lepidosiren 14
- leproseries 13
- leprosities 13
- lipomatoses 15
- lipomatosis 15
- liposucking 20
- lithostatic 16
- lychnoscope 23
- lyosorption 16
- macrospores 17
- manoscopies 17
- matryoshkas 23
- megalosaurs 14
- mesobenthos 18
- mesoscaphes 20
- metachroses 18
- metoposcopy 22
- metrostyles 16
- mezzotintos 31
- microskirts 19
- microsleeps 17
- microsmatic 19
- microsporic 19
- mimosaceous 17
- monoceroses 15
- monospermal 17
- monostichic 20
- monostomous 15
- monostrophe 18
- monostylous 16
- mossbluiter 15
- mossbunkers 19
- myrioscopes 20
- nearthroses 14
- nearthrosis 14
- necrobioses 15
- necroscopic 19
- nephroscope 20
- nephroscopy 23
- nicrosilals 13
- nitrosation 11
- northermost 16
- nosographer 17
- nosophobias 18
- nostomanias 13
- nostradamic 16
- oneiroscopy 18
- opeidoscope 18
- operosities 13
- ornithosaur 14
- orthoscopes 18
- oscillative 16
- oscitations 13
- osteoclases 13
- osteoclasis 13
- osteocollas 13
- osteodermal 14
- osteodermic 16
- osteogenies 12
- osteogenous 12
- osteography 20
- ostleresses 11
- ostracisers 13
- ostracizers 22
- ostracodous 14
- ostreaceous 13
- ostreophage 17
- ostreophagy 20
- ostrichisms 18
- ouroscopies 15
- overposting 17
- pampelmoose 19
- pancosmisms 19
- pantoscopes 17
- pantoscopic 19
- paracrostic 17
- paraglossae 14
- paraglossal 14
- paramedicos 18
- paranephros 18
- passamezzos 33
- peacherinos 18
- pendulosity 17
- periostitic 15
- phonoscopes 20
- phosgenites 17
- phosphating 22
- phosphatise 21
- phosphorate 21
- phosphorets 21
- phosphorise 21
- phosphorism 23
- phosphorize 30
- phosphurets 21
- photolithos 19
- pichiciagos 21
- pichiciegos 21
- plagiostome 16
- plasmosomes 17
- pomosexuals 22
- pompelmoose 19
- ponticellos 15
- poroscopies 17
- possessable 15
- possibilism 17
- possibilist 15
- postcarding 17
- postexilian 20
- postholders 17
- postillated 14
- postillates 13
- postillator 13
- postliminia 15
- postpersons 15
- postponence 17
- postscenium 17
- posturising 14
- posturizing 23
- precognosce 18
- precomposed 20
- precomposes 19
- predeposits 16
- predisposal 16
- prepositors 15
- promachoses 20
- prosaicisms 17
- prosecutrix 22
- prosiliency 18
- prosopopeia 17
- prospection 17
- prosternums 15
- prostomiums 17
- provostries 16
- pseudimagos 17
- pseudoscope 18
- pycnospores 20
- pycnostyles 21
- pyrognostic 19
- radicellose 14
- radioscopes 16
- reblossomed 16
- religiosely 15
- reposedness 14
- retinoscope 15
- retinospora 13
- retrosexual 18
- rhinoscopes 18
- rhinoscopic 20
- rondolettos 12
- rosanilines 11
- saccharoses 18
- sacrocostal 15
- sciosophies 18
- scirrhosity 19
- seismoscope 17
- sepiostaire 13
- serrasalmos 13
- southermost 16
- spirilloses 13
- spirillosis 13
- spondyloses 17
- stauroscope 15
- stereosonic 13
- stethoscopy 21
- stiacciatos 15
- stylostixes 21
- stylostixis 21
- suppositive 18
- supracostal 15
- synoecioses 16
- synoeciosis 16
- syssarcoses 16
- syssarcosis 16
- tawheowheos 23
- tediosities 12
- teinoscopes 15
- telegnostic 14
- teleostomes 13
- theosophise 19
- theosophism 21
- theosophize 28
- titanosaurs 11
- topagnosias 14
- tostication 13
- tremolandos 14
- trichinosed 17
- tschernosem 18
- tuberculose 15
- unapostolic 15
- unreposeful 16
- uroscopists 15
- urostegites 12
- ventosities 14
- verrucosity 19
- viciosities 16
- vitiosities 14
- wallposters 16
- weathermost 19
- whaikoreros 21
- xenoglossia 19
- xerostomata 20
- xerostomias 20
- xiphosurans 23
- yersinioses 14
- yersiniosis 14
- zoospermium 26
- zygosphenes 29
- zymosimeter 27
There are 1222 11-letter words containing os in the well-known word game dictionary, 678 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 1147 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 764 in the Words with Friends (WWF) dictionary.
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