12-Letter Words Matching _______ED___

There are 20 12-letter words that match _______ED___. 7 are common words, such as ACKNOWLEDGED and ACKNOWLEDGES. A rarer one is VENTROMEDIAL. 3 words contain a doubled letter.

Full list 20

acknowledgedacknowledgescyclopaediasdicotyledonsorthopaedicsorthopaedistunderfeedingdodecahedraldodecahedronlinebreedingprocathedralrhombohedralrhombohedronspoonfeedingarchdukedomsfeatheredgedfeatheredgesfrankpledgessomatomedinsventromedial

About this list

Words
20 (7 common words)
Common example
acknowledged
Rare example
ventromedial
Doubled letters
3
Ending in S
8

Questions

How many 12-letter words matching _______ed___ are there?

20. 7 of them are common words.

What is a common example?

ACKNOWLEDGED is among the common words in this set.