Countable Nouns Starting with AC and Containing O

Browse 161 valid English countable nouns starting with AC and containing O, from Action, Account, Actor, Acquisition, Accounting, Accountability and Accommodation to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.

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Starts with ACA
11 words
acanthamoeba
acajou
acanthodian
acanthocephalan
acaroid
acarologist
acanthopanax
acanthocephalid
acarodomatium
acaridomatium
acanthopterygian
Starts with ACC
24 words
account
accounting
accountability
accommodation
accommodations
accessory
accord
accomplishment
accusation
accountant
acceleration
accumulation
accomplice
accreditation
accelerator
accompaniment
accession
accordion
accolade
accelerometer
accoutrements
accumulator
acclamation
accompanist
Starts with ACE
14 words
acetylation
acerola
acetylcholinesterase
acetobacter
acervation
acetamidophenol
acetylacetonate
acetometer
acetoacetanilide
acetoxyl
acetoxyphthalide
acetobromanilide
acetylrosaniline
aceanthrenequinone
Starts with ACH
7 words
achoo
achiote
achondrite
achromat
achromatization
achaenocarp
achroodextrinase
Starts with ACI
9 words
acidification
acidosis
acidophilus
acinetobacter
acidophile
acinonyx
acidophil
acidulation
acidometer
Starts with ACK
2 words
acknowledgment
acknowledger
Starts with ACN
1 words
acnode
Starts with ACO
12 words
acoustic
acorn
acolyte
aconite
aconitum
acoelomate
acoustician
acouchi
acouchy
acoemeti
acotyledon
acosmist
Starts with ACQ
2 words
acquisition
acquisitor
Starts with ACR
23 words
acronym
acrobat
acropolis
acrostic
acrophobic
acromegalic
acromion
acrophobe
acrocentric
acrolect
acrosome
acrophony
acrospire
acroterion
acrogen
acrodont
acrolith
acroter
acroterium
acroparesthesia
acronyx
acrochordid
acrotrophoneurosis
Starts with ACT
21 words
action
actor
activation
activator
actuator
actualization
actuation
acton
actioner
actinomycete
actinoid
actinomyces
actinomycosis
actinomycin
actinolite
actionist
actinozoan
actinopod
actinobacillus
actinobacillosis
actinomere
Starts with ACU
2 words
acupoint
acumination
Starts with ACY
3 words
acylation
acyloin
acylamidobenzene

•Browse Countable Nouns by Letter (A to Z)

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