Countable Nouns Ending in OS and Containing ON

Browse 11 valid English countable nouns ending in OS and containing ON, from Pronaos, Opisthotonos, Pronephros, Mesonephros, Monopteros, Onos and Emprosthotonos 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 E
2 words
emprosthotonos
episthotonos
Starts with H
1 words
heautontimorumenos
Starts with M
3 words
monoceros
mesonephros
monopteros
Starts with O
2 words
opisthotonos
onos
Starts with P
2 words
pronaos
pronephros
Starts with S
1 words
sauroctonos

•Browse Countable Nouns by Letter (A to Z)

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