10-Letter Words Matching U________N

There are 16 10-letter words that match U________N. 5 are common words, such as ULCERATION and UNDERTAKEN. A rarer one is UNDEREATEN. In this set, R is the most frequent open letter (12 words). 1 words contain a doubled letter.

Full list 16

ulcerationundertakenundulationunforeseenusurpationundergrownunderlinenunforgivenunforsakenunmistakenurticationustulationultracleanultrahumanunbeholdenundereaten

About this list

Words
16 (5 common words)
Common example
ulceration
Rare example
undereaten
Doubled letters
1
Ending in S
0
Most frequent letter
R (12)

Questions

How many 10-letter words matching u________n are there?

16. 5 of them are common words.

What is a common example?

ULCERATION is among the common words in this set.