15-Letter Words Matching S________U_____

There are 15 15-letter words that match S________U_____. 4 are common words, such as SUPERCONDUCTING and SUPERCONDUCTIVE. A rarer one is SYNCHRONOUSNESS. 8 words contain a doubled letter.

Full list 15

superconductingsuperconductivesuperconductorssuperfluousnesssententiousnesssociolinguisticsaponaceousnesssilviculturallysilviculturistssocioculturallyspontaneousnesssuperstimulatedsuperstimulatessuspensefulnesssynchronousness

About this list

Words
15 (4 common words)
Common example
superconducting
Rare example
synchronousness
Doubled letters
8
Ending in S
9

Questions

How many 15-letter words matching s________u_____ are there?

15. 4 of them are common words.

What is a common example?

SUPERCONDUCTING is among the common words in this set.