10-Letter Words Matching ____K____R

There are 23 10-letter words that match ____K____R. 12 are common words, such as BLACKAMOOR and BOOKKEEPER. A rarer one is TRACKLAYER. In this set, E is the most frequent open letter (22 words). 14 words contain a doubled letter.

Full list 23

blackamoorbookkeeperbreakwaterbricklayerdoorkeepergamekeepergatekeepergoalkeeperpainkillershopkeepertimekeeperunlikelierclockmakercricketeermudskipperweedkillerblackwatercrowkeeperdropkickerlockkeeperstockpilerstrikeovertracklayer

About this list

Words
23 (12 common words)
Common example
blackamoor
Rare example
tracklayer
Doubled letters
14
Ending in S
0
Most frequent letter
E (22)

Questions

How many 10-letter words matching ____k____r are there?

23. 12 of them are common words.

What is a common example?

BLACKAMOOR is among the common words in this set.