10-Letter Words With F and J

There are 15 10-letter words that use both F and J. 5 are common words, such as JACKKNIFED and JACKKNIFES. A rarer one is RIJSTTAFEL. 7 words contain a doubled letter.

Full list 15

jackknifedjackknifesjoyfullestjoyfulnessjustifyingjackfruitsjellifyingjustifierssubjectifyforejudgedforejudgesforjudgingjackfishesjollifyingrijsttafel

About this list

Words
15 (5 common words)
Common example
jackknifed
Rare example
rijsttafel
Doubled letters
7
Ending in S
6

Questions

How many 10-letter words with f and j are there?

15. 5 of them are common words.

What is a common example?

JACKKNIFED is among the common words in this set.