Countable Nouns That Start with AU and End with ION

Explore 32 verified English countable nouns starting with AU and ending with ION, including Authorization, Auction, Authentication, Automation, Audition, Augmentation and Autocorrelation. Sort these count nouns with singular and plural forms by word length for ESL grammar practice, determiner usage, and plural spelling below, or review singular and plural count rules in our noun grammar guide.

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Starts with AUC
1 words
auction
Starts with AUD
1 words
audition
Starts with AUG
1 words
augmentation
Starts with AUS
1 words
auscultation
Starts with AUT
24 words
authorization
authentication
automation
autocorrelation
autofiction
autosuggestion
automatization
autorotation
autoxidation
autoasphyxiation
autoionization
autotransfusion
autoinoculation
autotransplantation
autoimmunization
autoinfection
autointoxication
automanipulation
autoagglutination
autosensitization
autocondensation
autodecomposition
autoracemization
autohybridization

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