Countable Nouns That End in IUS

Explore 58 verified English countable nouns ending with the suffix -IUS, including Genius, Radius, Denarius, Gladius, Gastrocnemius, Medius and Pangasius. Useful for ESL grammar practice, determiner usage, and plural spelling and rhyming patterns, browse these count nouns with singular and plural forms below or review singular and plural count rules in our noun grammar guide.

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Starts with A5 words
accessorius
antibacchius
aegypius
adradius
adscriptitius
Starts with B3 words
bacchius
brosmius
buccellarius
Starts with C5 words
charadrius
climatius
colius
congius
cochlearius
Starts with D3 words
denarius
dupondius
dochmius
Starts with E5 words
enterobius
epicranius
exradius
eschrichtius
ericius
Starts with F4 words
favonius
filius
februarius
firmarius
Starts with G4 words
genius
gladius
gastrocnemius
gloydius
Starts with I
2 words
interradius
ichthyophthirius
Starts with M
2 words
medius
modius
Starts with N
1 words
nauplius
Starts with O
1 words
octonarius
Starts with P3 words
pangasius
perradius
protospatharius
Starts with R3 words
radius
retiarius
risorius
Starts with S14 words
sagittarius
sartorius
socius
sicarius
stapedius
sardius
sestertius
sextarius
splenius
senarius
superius
scardinius
schedius
septenarius
Starts with T
2 words
tertius
trollius
Starts with V
1 words
vesuvius

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