11-Letter Words Matching _R_______G_

There are 20 11-letter words that match _R_______G_. 9 are common words, such as ARCHAEOLOGY and ARCHIPELAGO. A rarer one is TRIPHTHONGS. In this set, I is the most frequent open letter (16 words). 2 words contain a doubled letter.

Full list 20

archaeologyarchipelagocriminologycrochetingsdrawstringsorangutangsornithologyproceedingswrongdoingscradlesongscryobiologyfrankpledgeprimatologygroundlingspremarriageprewritingsprincelingsprogramingstraileringstriphthongs

About this list

Words
20 (9 common words)
Common example
archaeology
Rare example
triphthongs
Doubled letters
2
Ending in S
12
Most frequent letter
I (16)

Questions

How many 11-letter words matching _r_______g_ are there?

20. 9 of them are common words.

What is a common example?

ARCHAEOLOGY is among the common words in this set.