Countable Nouns That Start with A and End with OS

Explore 17 verified English countable nouns starting with A and ending with OS, including Adios, Atmos, Aulos, Azygos, Aoidos, Aryballos and Anophthalmos. 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.

Refine list...
JUMP:
Sort:

Group:

Case:

View:

JUMP TO:
Select any word to view available definitions & photosSelect any word for details
Starts with AD
1 words
adios
Starts with AE
2 words
aepyceros
aegithalos
Starts with AK
1 words
akolouthos
Starts with AL
2 words
alalagmos
alloiostrophos
anophthalmos
anigozanthos
anodos
antigropelos
Starts with AO
1 words
aoidos
Starts with AR
1 words
aryballos
Starts with AS
1 words
askos
Starts with AT
1 words
atmos
Starts with AU
1 words
aulos
Starts with AX
1 words
axios
Starts with AZ
1 words
azygos

•Browse Countable Nouns by Letter (A to Z)

Select a starting letter to browse countable nouns
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.