11-Letter Words Matching ___C_____D_

There are 20 11-letter words that match ___C_____D_. 4 are common words, such as BLACKBOARDS and BLACKGUARDS. A rarer one is PUNCHBOARDS. In this set, I is the most frequent open letter (15 words). 2 words contain a doubled letter.

Full list 20

blackboardsblackguardspitchblendepulchritudebrachiopodschickabiddyepicycloidsmatchboardsperchlorideslickensidesubchloridetrichloridebrickfieldsdiscommendsglucuronideglycolipidsniacinamidepatchboardsprocercoidspunchboards

About this list

Words
20 (4 common words)
Common example
blackboards
Rare example
punchboards
Doubled letters
2
Ending in S
11
Most frequent letter
I (15)

Questions

How many 11-letter words matching ___c_____d_ are there?

20. 4 of them are common words.

What is a common example?

BLACKBOARDS is among the common words in this set.