13-Letter Words Containing OIS

There are 16 13-letter words that contain OIS. 7 are common words, such as AVOIRDUPOISES and COUNTERPOISED. A rarer one is STEREOISOMERS. In this set, E is the most frequent open letter (14 words). 4 words contain a doubled letter.

Full list 16

avoirdupoisescounterpoisedcounterpoisesmademoisellesnoiselessnessradioisotopestortoiseshellcounterpoisonnoisomenessesxanthochroismantibourgeoisempoisonmentspostbourgeoispremoisteningradioisotopicstereoisomers

About this list

Words
16 (7 common words)
Common example
avoirdupoises
Rare example
stereoisomers
Doubled letters
4
Ending in S
10
Most frequent letter
E (14)

Questions

How many 13-letter words containing ois are there?

16. 7 of them are common words.

What is a common example?

AVOIRDUPOISES is among the common words in this set.