Countable Nouns Starting with A and Containing OS

Explore 230 verified English countable nouns starting with A and containing OS, including Atmosphere, Apostle, Animosity, Apostrophe, Agnostic, Adios and Aerosol. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.

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Starts with AB
1 words
abelmosk
Starts with AC9 words
acidosis
acrostic
acrosome
actinomycosis
acrospire
actinobacillosis
acosmist
acetylrosaniline
acrotrophoneurosis
Starts with AD14 words
adios
adiposity
adposition
adenosarcoma
adenosis
adenylpyrophosphate
adrenocorticosteroid
adenostoma
adenofibrosis
adosculation
adenomycosis
adenomyxosarcoma
adenomyosarcoma
adenochondrosarcoma
Starts with AE24 words
aerosol
aerosolization
aerostructure
aerostat
aeroshell
aerospike
aerosphere
aeroscope
aetosaur
aerosat
aepyceros
aegithalos
aeciospore
aetosaurus
aeroneurosis
aethrioscope
aetosaurian
aerosiderite
aeciostage
aecidiospore
aerosiderolite
aecidospore
aerobioscope
aecioteliospore
Starts with AF
2 words
affettuoso
afrormosia
Starts with AG6 words
agnostic
agnosia
agroecosystem
agnosic
agrostologist
agrostemma
Starts with AK
1 words
akolouthos
Starts with AL14 words
albatross
allosaurus
alkalosis
allosaur
altostratus
aluminosilicate
aldose
albertosaurus
alecost
aldohexose
albumose
aldopentose
alalagmos
alloiostrophos
Starts with AM13 words
ambrosia
amyloidosis
amargosa
amoroso
amaurosis
amitosis
amorosa
ambosexual
amorosity
amphiarthrosis
amphiprostyle
amplosome
amphidiarthrosis
Starts with AN24 words
animosity
angostura
anticorrosive
angiosperm
anosmic
anastomosis
angiosarcoma
ankylosaurus
ankylosaur
anthracnose
antihomosexual
anorthosite
anoscopy
anamorphosis
ankylosis
anarchosyndicalist
androsphinx
anoscope
ankyloglossia
anabiosis
anarchosocialist
angiostenosis
ankylosaurian
ankylostoma
Starts with AO
1 words
aoidos
Starts with AP20 words
apostle
apostrophe
apostasy
apotheosis
apostate
appositive
apostleship
appaloosa
apposition
apostolate
apatosaurus
apostille
aponeurosis
apatosaur
apodosis
aposiopesis
apostlebird
aplanospore
apostrophus
apposer
Starts with AR22 words
arthroscopy
argosy
arccosine
arteriosclerotic
archosaur
arthroscope
arioso
arkose
arthrosis
archosaurian
arabinoside
aryballos
arteriolosclerosis
arenosol
areostyle
arthrospore
araeostyle
araeosystyle
arteriosympathectomy
archosyrinx
archocystosyrinx
arthrosyrinx
Starts with AS5 words
asthenosphere
aspergillosis
ascospore
astrosphere
askos
Starts with AT3 words
atmosphere
atmos
attosecond
Starts with AU23 words
autosave
autosome
autosport
autosuggestion
autosuggest
autocross
aulos
autostrada
autosampler
autoexposure
auroscope
autoscopy
auxospore
autospore
autosensitization
autodecomposition
autolaryngoscopy
autoschediasm
autometamorphosis
autosuggestionist
autophthalmoscope
autolaryngoscope
autostandardization
Starts with AV
1 words
avitaminosis
Starts with AX
1 words
axios
Starts with AZ
2 words
azygos
azygospore

•Browse Countable Nouns by Letter (A to Z)

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