12-Letter Words Matching __F______O__

There are 25 12-letter words that match __F______O__. 19 are common words, such as AFFECTATIONS and AFFILIATIONS. A rarer one is UNFASTIDIOUS. In this set, I is the most frequent open letter (25 words). 10 words contain a doubled letter.

Full list 25

Common words

affectationsaffiliationsaffirmationsbifurcationsdefalcationsdefoliationsdeformationsdiffractionsinfatuationsinfelicitousinfestationsinfiltrators
affectationsaffiliationsaffirmationsbifurcationsdefalcationsdefoliationsdeformationsdiffractionsinfatuationsinfelicitousinfestationsinfiltratorsinflammatoryinformationsobfuscationsofficialdomsreformationssuffixationssuffocationsofficiationssuffruticosedeflorationsexfoliationsinfuriationsunfastidious

About this list

Words
25 (19 common words)
Common example
affectations
Rare example
unfastidious
Doubled letters
10
Ending in S
23
Most frequent letter
I (25)

Questions

How many 12-letter words matching __f______o__ are there?

25. 19 of them are common words.

What is a common example?

AFFECTATIONS is among the common words in this set.