12-Letter Words Containing RFO

There are 18 12-letter words that contain RFO. 4 are common words, such as COUNTERFOILS and OUTPERFORMED. A rarer one is WATERFOWLING. In this set, E is the most frequent open letter (17 words). 2 words contain a doubled letter.

Full list 18

counterfoilsoutperformedperforationsperformancescounterforceperformativeunperforatedinterfoldingnonperformeroverfocusingoverfocussedoverfocussesparfocalizedparfocalizesperformatorytrichlorfonswaterfowlerswaterfowling

About this list

Words
18 (4 common words)
Common example
counterfoils
Rare example
waterfowling
Doubled letters
2
Ending in S
7
Most frequent letter
E (17)

Questions

How many 12-letter words containing rfo are there?

18. 4 of them are common words.

What is a common example?

COUNTERFOILS is among the common words in this set.