15-Letter Words Matching ____O_______S__

There are 66 15-letter words that match ____O_______S__. 19 are common words, such as AIRWORTHINESSES and ANALOGOUSNESSES. A rarer one is VISIONARINESSES. In this set, S is the most frequent open letter (65 words). 27 words contain a doubled letter.

Full list 66

Common words

airworthinessesanalogousnessesastrophysicistsdiscontinuouslydissolutenesseselaboratenessesexplosivenessesfrivolousnesseshydrocephalusesmicrobiologistsneocolonialismsneocolonialists
airworthinessesanalogousnessesastrophysicistsdiscontinuouslydissolutenesseselaboratenessesexplosivenessesfrivolousnesseshydrocephalusesmicrobiologistsneocolonialismsneocolonialistsnitrocellulosespaleontologistsradiotherapistsseaworthinessesservomechanismssorrowfulnessestemporarinessesferromagnetismsgluconeogenesisglyconeogenesishypnotherapistssociobiologiststarsometatarsusadenohypophysesadenohypophysisaminopeptidasesariboflavinosesariboflavinosisastrobiologistschemotherapistsclamorousnessescorporealnessescorrosivenessescustomarinessesferromanganesesglamorousnessesgluconeogeneseshydrobiologistsinviolatenesseslignocelluloseslignocellulosicneuroanatomistsneurobiologistsneurohypophysesneurohypophysisneuroscientistsoxidoreductasespaleobiologistspaleoecologistspaleomagnetismspaleomagnetistspaleozoologistsphotobiologistsphotogeologistsphotoperiodismspictorialnessespromotivenessesprotozoologistspurposivenessesradiobiologistssteroidogenesessteroidogenesistomboyishnessesvisionarinesses

About this list

Words
66 (19 common words)
Common example
airworthinesses
Rare example
visionarinesses
Doubled letters
27
Ending in S
64
Most frequent letter
S (65)

Questions

How many 15-letter words matching ____o_______s__ are there?

66. 19 of them are common words.

What is a common example?

AIRWORTHINESSES is among the common words in this set.