14-Letter Words Matching R_____O_______

There are 22 14-letter words that match R_____O_______. 4 are common words, such as RECIPROCATIONS and RECONNOITERING. A rarer one is RUMORMONGERING. In this set, I is the most frequent open letter (21 words). 6 words contain a doubled letter.

Full list 22

reciprocationsreconnoiteringreintroductionrephotographedradiolocationsradiologicallyreciprocalnessrenationalizedreactionaryismreappropriatedreappropriatesrecompositionsreconsolidatedreconsolidatesrediscountableredispositionsreembroideringremythologizedremythologizesrenationalizesrespirometriesrumormongering

About this list

Words
22 (4 common words)
Common example
reciprocations
Rare example
rumormongering
Doubled letters
6
Ending in S
10
Most frequent letter
I (21)

Questions

How many 14-letter words matching r_____o_______ are there?

22. 4 of them are common words.

What is a common example?

RECIPROCATIONS is among the common words in this set.