12-Letter Words Containing OSO

There are 21 12-letter words that contain OSO. 5 are common words, such as PHILOSOPHERS and PHILOSOPHIES. A rarer one is TRYPANOSOMES. 1 words contain a doubled letter.

Full list 21

philosophersphilosophiesphilosophizetheosophicaltheosophistschondriosomeeuchromosomegymnosophistphilosophismprosopopoeiapsychosocialschistosomesaerosolizingphilosophisepolyribosomeprosobranchsprosodicallyschistosomalsynaptosomalsynaptosomestrypanosomes

About this list

Words
21 (5 common words)
Common example
philosophers
Rare example
trypanosomes
Doubled letters
1
Ending in S
7

Questions

How many 12-letter words containing oso are there?

21. 5 of them are common words.

What is a common example?

PHILOSOPHERS is among the common words in this set.