11-Letter Words Matching ____X_____S

There are 14 11-letter words that match ____X_____S. 5 are common words, such as ANNEXATIONS and INDEXATIONS. A rarer one is RELAXEDNESS. 3 words contain a doubled letter.

Full list 14

annexationsindexationsintoxicantsintoxicatesrelaxationsaffixationsdetoxicatesdetoxicantsinfixationsperoxidasesperoxisomespyroxenitespyroxenoidsrelaxedness

About this list

Words
14 (5 common words)
Common example
annexations
Rare example
relaxedness
Doubled letters
3
Ending in S
14

Questions

How many 11-letter words matching ____x_____s are there?

14. 5 of them are common words.

What is a common example?

ANNEXATIONS is among the common words in this set.