11-Letter Words Matching ________NO_

There are 12 11-letter words that match ________NO_. 3 are common words, such as CAPPUCCINOS and MARASCHINOS. A rarer one is LANGOSTINOS. In this set, I is the most frequent open letter (10 words). 2 words contain a doubled letter.

Full list 12

cappuccinosmaraschinosmisdemeanorisopropanolallopurinolavgolemonosbaldachinosbourguignonconcertinosfortepianosheldentenorlangostinos

About this list

Words
12 (3 common words)
Common example
cappuccinos
Rare example
langostinos
Doubled letters
2
Ending in S
7
Most frequent letter
I (10)

Questions

How many 11-letter words matching ________no_ are there?

12. 3 of them are common words.

What is a common example?

CAPPUCCINOS is among the common words in this set.