13-Letter Words Matching _S________E__

There are 12 13-letter words that match _S________E__. 4 are common words, such as ASCERTAINMENT and ASSERTIVENESS. A rarer one is PSYCHOSURGEON. In this set, S is the most frequent open letter (11 words). 6 words contain a doubled letter.

Full list 12

ascertainmentassertivenessassiduousnessestablishmentassociativelyasthenosphereessentialnesspsychosurgerypsychrometersassortativelyestimablenesspsychosurgeon

About this list

Words
12 (4 common words)
Common example
ascertainment
Rare example
psychosurgeon
Doubled letters
6
Ending in S
5
Most frequent letter
S (11)

Questions

How many 13-letter words matching _s________e__ are there?

12. 4 of them are common words.

What is a common example?

ASCERTAINMENT is among the common words in this set.