7-Letter Words Matching W_____L

There are 13 7-letter words that match W_____L. 8 are common words, such as WAGTAIL and WAKEFUL. A rarer one is WAMEFUL. In this set, A is the most frequent open letter (10 words). 6 words contain a doubled letter.

Full list 13

wagtailwakefulwassailwastrelwaybillwillfulwishfulwistfulwailfulwaxbillwadmaalwadmollwameful

About this list

Words
13 (8 common words)
Common example
wagtail
Rare example
wameful
Doubled letters
6
Ending in S
0
Most frequent letter
A (10)

Questions

How many 7-letter words matching w_____l are there?

13. 8 of them are common words.

What is a common example?

WAGTAIL is among the common words in this set.