13-Letter Words Matching F_O__________

There are 15 13-letter words that match F_O__________. 6 are common words, such as FLOODLIGHTING and FLOWERINESSES. A rarer one is FRONTOGENESES. In this set, S is the most frequent open letter (13 words). 7 words contain a doubled letter.

Full list 15

floodlightingflowerinessesfoolhardinessfoolishnessesfrontispiecesfrowardnessesfloriculturesfrontbenchersfrontogenesisflocculationsfloriculturalfloristicallyflourishinglyflowchartingsfrontogeneses

About this list

Words
15 (6 common words)
Common example
floodlighting
Rare example
frontogeneses
Doubled letters
7
Ending in S
11
Most frequent letter
S (13)

Questions

How many 13-letter words matching f_o__________ are there?

15. 6 of them are common words.

What is a common example?

FLOODLIGHTING is among the common words in this set.