13-Letter Words Matching ___S___U_____

There are 15 13-letter words that match ___S___U_____. 7 are common words, such as CONSANGUINITY and CONSCIOUSNESS. A rarer one is PLASTOQUINONE. In this set, I is the most frequent open letter (14 words). 2 words contain a doubled letter.

Full list 15

consanguinityconsciousnessconspicuouslyconstitutionsperspicuitiesprostitutionssubstitutionsconstituentlyconsuetudinalgriseofulvinsmonstrousnessperspicuouslysubstitutableconspicuitiesplastoquinone

About this list

Words
15 (7 common words)
Common example
consanguinity
Rare example
plastoquinone
Doubled letters
2
Ending in S
8
Most frequent letter
I (14)

Questions

How many 13-letter words matching ___s___u_____ are there?

15. 7 of them are common words.

What is a common example?

CONSANGUINITY is among the common words in this set.