15-Letter Words Matching S_R____________

There are 25 15-letter words that match S_R____________. 9 are common words, such as SERVOMECHANISMS and SORROWFULNESSES. A rarer one is SURVIVABILITIES. In this set, I is the most frequent open letter (22 words). 8 words contain a doubled letter.

Full list 25

Common words

servomechanismssorrowfulnessessprightlinessesstraightforwardstraightjacketsstraitjacketingstratificationsstrenuousnessessurreptitiouslysarraceniaceousserendipitouslyserviceableness
servomechanismssorrowfulnessessprightlinessesstraightforwardstraightjacketsstraitjacketingstratificationsstrenuousnessessurreptitiouslysarraceniaceousserendipitouslyserviceablenessservomechanicalstratigraphicalstreptothricinsseroconversionsspreadabilitiesstraitlacednessstratovolcanoesstreptobacillusstrikebreakingsstrongyloidosesstrongyloidosisstructuralizingsurvivabilities

About this list

Words
25 (9 common words)
Common example
servomechanisms
Rare example
survivabilities
Doubled letters
8
Ending in S
18
Most frequent letter
I (22)

Questions

How many 15-letter words matching s_r____________ are there?

25. 9 of them are common words.

What is a common example?

SERVOMECHANISMS is among the common words in this set.