12-Letter Words Matching _____R_F____

There are 12 12-letter words that match _____R_F____. 3 are common words, such as ELECTRIFIERS and ELECTRIFYING. A rarer one is ULTRAREFINED. 2 words contain a doubled letter.

Full list 12

electrifierselectrifyinghandcraftingcrossruffingdenitrifyingdevitrifyingsynchroflashallograftingautograftingdenitrifierselectroformsultrarefined

About this list

Words
12 (3 common words)
Common example
electrifiers
Rare example
ultrarefined
Doubled letters
2
Ending in S
3

Questions

How many 12-letter words matching _____r_f____ are there?

12. 3 of them are common words.

What is a common example?

ELECTRIFIERS is among the common words in this set.