13-Letter Words Matching ___W________S

There are 20 13-letter words that match ___W________S. 10 are common words, such as AIRWORTHINESS and AWKWARDNESSES. A rarer one is SNOWMOBILISTS. In this set, N is the most frequent open letter (20 words). 15 words contain a doubled letter.

Full list 20

airworthinessawkwardnessescrowdfundingsflowerinessesforwardnessesfrowardnessesseaworthinesssnowboardingsunawarenesseswaywardnessesbetweenwhilesbetweenbrainsbetweennessescrowdednessesflowchartingsgrowthinessesknowingnessesoutwardnessessnowmobilingssnowmobilists

About this list

Words
20 (10 common words)
Common example
airworthiness
Rare example
snowmobilists
Doubled letters
15
Ending in S
20
Most frequent letter
N (20)

Questions

How many 13-letter words matching ___w________s are there?

20. 10 of them are common words.

What is a common example?

AIRWORTHINESS is among the common words in this set.