15-Letter Words Matching _O__A__________

There are 29 15-letter words that match _O__A__________. 7 are common words, such as COLLATERALIZING and COMBATIVENESSES. A rarer one is SOMNAMBULATIONS. In this set, I is the most frequent open letter (27 words). 13 words contain a doubled letter.

Full list 29

Common words

collateralizingcombativenessescomparabilitiescompassionatelycompatibilitiesconsanguinitiesnonparticipantscollaborativelysocialisticallybougainvillaeascollateralitiescomparativeness
collateralizingcombativenessescomparabilitiescompassionatelycompatibilitiesconsanguinitiesnonparticipantscollaborativelysocialisticallybougainvillaeascollateralitiescomparativenesscompassionatingcomradelinessesconnaturalitiescontainerboardscotransductionsnonbarbituratesnoncarcinogenicnonmathematicalnonmatriculatednonpartisanshipnonrandomnessesnonsaponifiablenormativenessespolyacrylamidespostadolescentspostapocalypticsomnambulations

About this list

Words
29 (7 common words)
Common example
collateralizing
Rare example
somnambulations
Doubled letters
13
Ending in S
18
Most frequent letter
I (27)

Questions

How many 15-letter words matching _o__a__________ are there?

29. 7 of them are common words.

What is a common example?

COLLATERALIZING is among the common words in this set.