8-Letter Words Matching _S____A_

There are 18 8-letter words that match _S____A_. 4 are common words, such as ESPECIAL and ESPOUSAL. A rarer one is USQUEBAE. In this set, I is the most frequent open letter (10 words). 1 words contain a doubled letter.

Full list 18

especialespousalisthmiantsarinasascidianassignatasternalastragaleschewalosteomasastasiasasteriasisogonalisopodanosmundasostiolarusquabaeusquebae

About this list

Words
18 (4 common words)
Common example
especial
Rare example
usquebae
Doubled letters
1
Ending in S
5
Most frequent letter
I (10)

Questions

How many 8-letter words matching _s____a_ are there?

18. 4 of them are common words.

What is a common example?

ESPECIAL is among the common words in this set.