Countable Nouns Ending in IO and Containing IO

Explore 108 verified English countable nouns ending in IO and containing IO, including Audio, Radio, Studio, Scenario, Ratio, Portfolio and Bio. 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 A
7 words
audio
adagio
arpeggio
amnio
addio
agio
animalillio
Starts with B
8 words
bio
barrio
braggadocio
bagnio
baguio
bocaccio
borachio
braccio
Starts with C
11 words
cheerio
curio
carpaccio
capriccio
cabrio
comprimario
curculio
cessio
calcedonio
cellvibrio
coemptio
Starts with D
5 words
dimaggio
doppio
danio
donatio
desulfovibrio
Starts with E
8 words
empresario
estadio
exceptio
elepaio
expressio
etaerio
emptio
escambio
Starts with F
8 words
folio
fonio
fascio
finocchio
fallopio
fario
ferio
fugio
Starts with G
1 words
gorgio
Starts with H
2 words
helio
histrio
Starts with I
5 words
io
imbroglio
impresario
intaglio
internuncio
Starts with L
4 words
lothario
latifundio
latticinio
libeccio
Starts with M
2 words
mustachio
mercedario
Starts with N
3 words
nuncio
ngaio
noctilio
Starts with O
2 words
oratorio
olio
Starts with P
16 words
portfolio
patio
pistachio
physio
presidio
papilio
preludio
punctilio
pasticcio
pastitsio
pronuncio
pernio
petitio
piopio
pulvillio
porphyrio
Starts with R
7 words
radio
ratio
rio
radicchio
reductio
rosolio
restio
Starts with S
12 words
studio
scenario
sicario
scipio
solfeggio
seraglio
senecio
sitio
solio
stellio
solutio
segugio
Starts with T
5 words
trio
tercio
taleggio
thio
tenebrio
Starts with V
1 words
vibrio
Starts with W
1 words
whio

•Browse Countable Nouns by Letter (A to Z)

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