6-Letter Words Matching ___U_N

There are 13 6-letter words that match ___U_N. 7 are common words, such as AUBURN and AUTUMN. A rarer one is SCHULN. In this set, R is the most frequent open letter (6 words). 1 words contain a doubled letter.

Full list 13

auburnautumncolumnimpugnreturnsequinupturnoppugnrepugnbeduininturnrequinschuln

About this list

Words
13 (7 common words)
Common example
auburn
Rare example
schuln
Doubled letters
1
Ending in S
0
Most frequent letter
R (6)

Questions

How many 6-letter words matching ___u_n are there?

13. 7 of them are common words.

What is a common example?

AUBURN is among the common words in this set.