13-Letter Words Matching ____S__U_____

There are 18 13-letter words that match ____S__U_____. 5 are common words, such as CHEESEBURGERS and HOMOSEXUALITY. A rarer one is TRANSMOUNTAIN. In this set, E is the most frequent open letter (17 words). 4 words contain a doubled letter.

Full list 18

cheeseburgershomosexualityirresolutionsjurisprudenceunpasteurizedstressfulnessundiscourageduninstructiveambisexualityantisexualityjurisprudentsoversaturatedoversaturatesoverslaughingparasexualityrediscountingreposefulnesstransmountain

About this list

Words
18 (5 common words)
Common example
cheeseburgers
Rare example
transmountain
Doubled letters
4
Ending in S
6
Most frequent letter
E (17)

Questions

How many 13-letter words matching ____s__u_____ are there?

18. 5 of them are common words.

What is a common example?

CHEESEBURGERS is among the common words in this set.