12-Letter Words Matching F_L_________

There are 23 12-letter words that match F_L_________. 12 are common words, such as FALLACIOUSLY and FALLIBLENESS. A rarer one is FULIGINOUSLY. In this set, I is the most frequent open letter (21 words). 12 words contain a doubled letter.

Full list 23

fallaciouslyfalliblenessfelicitatingfelicitationfelicitouslyfilibusteredfilibustererfilthinessesfolksinessesfolksingingsfulfillmentsfulminationsfolkloristicfallownessesfelicitatorsfellmongeredfellowshipedfilmsettingsfolliculitesfolliculitisfollowershipfulgurationsfuliginously

About this list

Words
23 (12 common words)
Common example
fallaciously
Rare example
fuliginously
Doubled letters
12
Ending in S
12
Most frequent letter
I (21)

Questions

How many 12-letter words matching f_l_________ are there?

23. 12 of them are common words.

What is a common example?

FALLACIOUSLY is among the common words in this set.