10-Letter Words Matching ____IO____

There are 109 10-letter words that match ____IO____. 47 are common words, such as AFICIONADO and AMELIORATE. A rarer one is VITRIOLLED. In this set, S is the most frequent open letter (66 words). 17 words contain a doubled letter.

Full list 109

Common words

aficionadoameliorateauctioneerauctioningbillionthscabrioletscaptioningcaptiouslycardiogramcardiologycautionarycautioning
aficionadoameliorateauctioneerauctioningbillionthscabrioletscaptioningcaptiouslycardiogramcardiologycautionarycautioningcautiouslycharioteercushioningdictionaryexobiologyfashionersfashioninggloriouslygraciouslylusciouslymentioningmillionthsmissionarymissionersnonviolentpassionatepatriotismpensionerspensioningphysiologyportioningpreciositypreciouslypreviouslysectionalssectioningspaciouslyspeciouslyspuriouslystationarystationersstationerystationingstudiouslysuctioningclarioningastrionicsbibliofilmbibliogonybibliologybibliopegybibliopolebibliotaphcalliopsiscapriolingcertioraricessionarycraniologycraniotomydithioniteepisiotomyfactiouslyfictionistglaciologyherniotomyhistiocytelectionarymethionineovariotomypensionaryperviouslyphysiotypeplesiosaurreunionistscabiousessemeiologyspeciositytuitionaryusuriouslyuxoriouslyversioningvitriolizeaficionadabiblioticsbibliotistchariotingfictioneerfictionizefissioningmentionersmilliosmolmissiologymissioningmissionizemullioningnonriotersnonriotingpereiopodspreciousespropionatesemeioticssignioriestensionerstensioningtortiouslyvitriolingvitriolled

About this list

Words
109 (47 common words)
Common example
aficionado
Rare example
vitriolled
Doubled letters
17
Ending in S
19
Most frequent letter
S (66)

Questions

How many 10-letter words matching ____io____ are there?

109. 47 of them are common words.

What is a common example?

AFICIONADO is among the common words in this set.