12 Letter Countable Nouns
Explore 4,445 verified English countable nouns with 12 letters, including Organization, Relationship, Professional, Conversation, Construction, Distribution and Conservative. Browse these count nouns with singular and plural forms alphabetically below, or review singular and plural count rules in our noun grammar guide.
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Starts with A24 words
availability
architecture
announcement
appreciation
anticipation
acquaintance
acceleration
assimilation
abbreviation
apprehension
accumulation
articulation
abolitionist
acquiescence
annihilation
augmentation
amortization
afterthought
alliteration
adjudication
autocomplete
alphanumeric
amalgamation
annunciation
Starts with B24 words
breakthrough
bibliography
bewilderment
biochemistry
battleground
bachelorette
breaststroke
backstabbing
breathalyzer
belligerency
bicentennial
brontosaurus
blackcurrant
bloodletting
biosynthesis
blabbermouth
bantamweight
backwoodsman
bronchoscopy
bacchanalian
bodystocking
benefactress
biosignature
blandishment
Starts with C24 words
conversation
construction
conservative
constitution
contribution
contemporary
circumstance
confirmation
civilization
compensation
championship
christianity
commissioner
consultation
continuation
colonization
complication
cancellation
connectivity
commonwealth
condemnation
constituency
congregation
chemotherapy
Starts with D24 words
distribution
disadvantage
disagreement
differential
dictatorship
demographics
displacement
denomination
deliberation
downloadable
depreciation
dissertation
dissociation
degeneration
digitization
demonstrator
deregulation
disinfectant
distillation
disbursement
dispensation
deescalation
delicatessen
denunciation
Starts with E24 words
exploitation
entrepreneur
encyclopedia
exaggeration
epidemiology
emancipation
extravagance
exasperation
entanglement
embezzlement
endangerment
extravaganza
exhilaration
eccentricity
encroachment
estrangement
exacerbation
exterminator
experimenter
epistemology
equalization
extinguisher
expansionist
episcopalian
Starts with F24 words
fermentation
facilitation
fluorescence
favorability
flamethrower
fibrillation
feminization
finalization
frontiersman
flashforward
flagellation
festivalgoer
frontispiece
fountainhead
fluorocarbon
felicitation
followership
fenestration
fiddlesticks
frontbencher
fluorination
fibrinolytic
fictionality
flocculation
Starts with G24 words
guardianship
gynecologist
governorship
globetrotter
goldendoodle
glycoprotein
geophysicist
glioblastoma
geriatrician
gerontocracy
geoscientist
genuflection
gasification
glockenspiel
glycopeptide
gonadotropin
grotesquerie
galvanometer
genotoxicity
glaciologist
groundstroke
gemeinschaft
greenskeeper
grandstander
Starts with H24 words
humanitarian
hypothetical
heterosexual
handkerchief
hysterectomy
heartbreaker
hypertensive
hippopotamus
headmistress
happenstance
hypothalamus
hallucinogen
heartstrings
haberdashery
housewarming
hypochondria
holidaymaker
homeschooler
hermeneutics
hieroglyphic
hindquarters
humanization
hypnotherapy
hypoglycemic
Starts with I24 words
intelligence
introduction
intervention
installation
illustration
intellectual
interference
intermediate
investigator
instrumental
intersection
inflammation
interruption
intimidation
imprisonment
incompatible
infringement
intoxication
inauguration
illumination
immunization
interception
inefficiency
imperfection
Starts with J7 words
jurisdiction
jurisprudent
jitterbugger
jurisconsult
japonaiserie
justificator
jumboization
Starts with K21 words
kindergarten
kaleidoscope
kleptomaniac
ketoacidosis
keratinocyte
ketoconazole
kakistocracy
knucklebones
keratoplasty
klipspringer
kinnikinnick
katzenjammer
kiddiewinkie
karyokinesis
kaleidophone
koelreuteria
katharometer
kirengeshoma
kettlestitch
kletterschuh
keraunograph
Starts with L24 words
legalization
localization
longshoreman
liverpudlian
listenership
lollapalooza
legitimation
luncheonette
laryngectomy
lithographer
latinization
lumberjacket
lepidopteran
laryngoscopy
laryngospasm
leukocytosis
laryngoscope
lexicologist
leathercloth
laundrywoman
lachrymatory
languishment
laureateship
leachability
Starts with M24 words
manufacturer
modification
manipulation
metropolitan
municipality
motherfucker
manipulative
masturbation
multilingual
mobilization
multiplicity
misalignment
mistreatment
monetization
manslaughter
maximization
memorization
menstruation
messageboard
microplastic
misdirection
misadventure
microbiology
minimization
Starts with N24 words
neighborhood
notification
neuroscience
newfoundland
neurotypical
nonessential
nutritionist
nomenclature
nanoparticle
nonalcoholic
neurosurgery
neurosurgeon
nonrenewable
nonexistence
newspaperman
nonemergency
nonlinearity
noncombatant
nymphomaniac
nightcrawler
nephrologist
nonexecutive
nonimmigrant
notarization
Starts with O24 words
organization
optimization
overreaction
officeholder
orthodontist
overestimate
obliteration
obstetrician
octogenarian
onomatopoeia
orchestrator
overachiever
overexposure
ombudsperson
overemphasis
oscilloscope
overexertion
overactivity
overcapacity
ossification
osteosarcoma
overanalysis
overpressure
omnishambles
Starts with P24 words
professional
presentation
photographer
prescription
psychologist
psychiatrist
proportional
practitioner
polarization
proclamation
philanthropy
prerequisite
pediatrician
practicality
purification
presbyterian
paramilitary
partitioning
photovoltaic
postponement
preservative
plausibility
philharmonic
postgraduate
Starts with Q21 words
quintessence
quarterfinal
quadriplegic
quantization
quantitation
quarterstaff
quinquennial
quadrivalent
quarterlight
quasicrystal
quaestorship
quinquennium
quinacridone
quizzicality
quadriennium
quadrinomial
qualificator
quarrymaster
quinquenniad
quelquechose
quindecaplet
Starts with R24 words
relationship
registration
reproduction
refrigerator
resurrection
recollection
ratification
refreshments
receptionist
regeneration
rechargeable
repercussion
resettlement
reassessment
reassignment
rejuvenation
reappearance
ramification
reminiscence
readjustment
repatriation
redefinition
reinvestment
radiotherapy
Starts with S24 words
satisfaction
significance
subscription
substitution
spokesperson
spirituality
supernatural
subconscious
subcommittee
superstition
supplemental
solicitation
scandinavian
segmentation
statistician
screenwriter
stepdaughter
subjectivity
subcontinent
straightaway
schoolmaster
spectroscopy
sledgehammer
subdirectory
Starts with T24 words
transmission
transparency
thanksgiving
totalitarian
thunderstorm
transcendent
technicality
troublemaker
technologist
therapeutics
thoroughfare
transference
tranquilizer
telemarketer
triglyceride
transvestite
teleprompter
thoroughbred
thoughtcrime
transgressor
turbocharger
telecommuter
tracheostomy
thundercloud
Starts with U24 words
underpinning
unionization
underwriting
universality
undercurrent
universalism
undergarment
unemployable
unobservable
unlikelihood
universalist
underpayment
unrecyclable
unsubscriber
unpleasantry
underlayment
unconformity
unregenerate
unseemliness
ultraliberal
unsaturation
undersurface
undercoating
ultracompact
Starts with V24 words
verification
veterinarian
videographer
vocalization
vilification
velociraptor
vaporization
vasodilation
vociferation
vaudevillian
venipuncture
vaginoplasty
vermicompost
valorization
vinification
voluntourist
vacationland
vitalization
vanquishment
valpolicella
vibraphonist
variationist
verticillium
vigintillion
Starts with W24 words
whitewashing
weightlifter
whataboutism
welterweight
whataboutery
whippoorwill
wavefunction
whatshisface
whatshisname
walkingstick
whimsicality
whatsherface
warehouseman
wicketkeeper
wallcovering
weatherwoman
whatshername
whatsitsname
weatherstrip
whackadoodle
waterproofer
workingwoman
wellingtonia
weatherboard
Starts with X12 words
xiphisternum
xiphosternum
xenoparasite
xanthorrhoea
xanthochroid
xanthogenate
xanthorrhiza
xenacanthine
xylophagidae
xenorhynchus
xanthoxenite
xanthoconite
Starts with Y4 words
yellowjacket
yellowhammer
yellowthroat
yttrogummite
Starts with Z18 words
zooxanthella
zygapophysis
zantedeschia
zincographer
zoopathology
zephyranthes
zoochlorella
zonochlorite
zoomastigote
zygolabialis
zoogeologist
zalambdodont
zwinglianist
zoophysicist
zonoskeleton
zoocoenocyte
zoosporocyst
zygozoospore