14-Letter Words Matching ____I____O____

There are 21 14-letter words that match ____I____O____. 10 are common words, such as ARCHITECTONICS and MULTIFARIOUSLY. A rarer one is UNCHIVALROUSLY. 1 words contain a doubled letter.

Full list 21

architectonicsmultifariouslymultinationalsparsimoniouslyparticleboardspassionflowerspertinaciouslyprohibitionistrequisitioningsacrilegiouslyinquisitionistmastigophoransorchidectomiessubdirectoriesapolipoproteincorticotrophincorticotropinsgingivectomiesmulticomponentmultifactorialunchivalrously

About this list

Words
21 (10 common words)
Common example
architectonics
Rare example
unchivalrously
Doubled letters
1
Ending in S
9

Questions

How many 14-letter words matching ____i____o____ are there?

21. 10 of them are common words.

What is a common example?

ARCHITECTONICS is among the common words in this set.