9-Letter Words Containing OTU

There are 12 9-letter words that contain OTU. 3 are common words, such as BOTULISMS and FACTOTUMS. A rarer one is ROTURIERS. In this set, I is the most frequent open letter (8 words). 1 words contain a doubled letter.

Full list 12

botulismsfactotumsrotunditybotulinumbotulinusphototubeteetotumsazoturiasbotulinalcloturinglotuslandroturiers

About this list

Words
12 (3 common words)
Common example
botulisms
Rare example
roturiers
Doubled letters
1
Ending in S
6
Most frequent letter
I (8)

Questions

How many 9-letter words containing otu are there?

12. 3 of them are common words.

What is a common example?

BOTULISMS is among the common words in this set.